polar
polar — 形容詞
1. connected with Earth's far northern or southern end, or with the icy land and se
極地的
和南極、北極或附近地區有關
connected with Earth's far northern or southern end, or with the icy land and sea around those points.
Scientists tracked polar ice melting near Greenland last summer.
科學家去年夏天追蹤了格陵蘭附近極地冰層的融化情況。
collocation: polar ice
A polar research ship left Norway before the winter storms.
一艘極地研究船在冬季風暴來臨前離開了挪威。
common before nouns: polar research ship
The museum opened a polar science hall with whale bones and ice maps.
那間博物館新開了一個擺著鯨骨和冰區地圖的極地科學展廳。
Lina's grandfather spent two years at a polar station in Antarctica.
Lina 的祖父曾在南極的一座極地站待過兩年。
The guide showed us polar bear fur in the Arctic display.
導覽員在北極展區裡拿北極熊的毛皮給我們看。
- Arctic
only for the northern polar region
- Antarctic
only for the southern polar region
- far-northern
descriptive phrase for places very near the North Pole
- equatorial
connected with the hot area around the equator
- tropical
connected with warm regions near the equator
用法筆記
Usually comes before nouns such as 'ice', 'bear', 'region', 'research', and 'station'. Distinguish from sense 3: this sense is about Earth's cold end regions, not a mathematics term.
常見錯誤
2. describing two people, ideas, or things that stand at totally different ends, wi
截然相反
位在完全相對的兩端
describing two people, ideas, or things that stand at totally different ends, with no important similarity between them.
My twin cousins are polar opposites in both dress and taste.
我的一對雙胞胎表親在穿著和品味上都截然相反。
fixed phrase: be polar opposites
At the town meeting, the two plans offered polar opposite answers to rising rents.
在鎮民大會上，這兩個方案對房租上漲提出了截然相反的對策。
common before nouns: polar opposite answer
Lena's quiet study habits are the polar opposite of Max's.
Lena 安靜的讀書習慣和 Max 的讀書方式正好完全相反。
The couple's views on money remain polar opposites after thirty years of marriage.
這對夫妻對金錢的看法在結婚三十年後仍然截然相反。
Ben's jokes and Iris's poems create polar opposite moods in class.
Ben 的笑話和 Iris 的詩在課堂上帶來截然相反的氣氛。
- opposite
broader and weaker; two things can be opposite without being extreme
- contrary
formal; often used for opinions or advice that go against each other
- diametrically opposed
formal and very strong, close in force to 'polar opposite'
- similar
sharing important features
- compatible
able to exist or work well together
文法句型
be the polar opposite of somebody/something
be polar opposites
用法筆記
Mostly used in the fixed phrase 'the polar opposite of' or as 'be polar opposites'. Stronger than simply saying two things are different.
常見錯誤
3. used in mathematics for things based on a fixed point called a pole, such as pol
極座標的
數學中和極座標、極軸、極點等有關
used in mathematics for things based on a fixed point called a pole, such as polar coordinates, a polar axis, or points on a sphere.
The class learned polar coordinates before starting the graphing project.
這班學生在開始作圖專題前先學了極座標。
common collocation: polar coordinates
Dr. Chen used a polar equation to describe the spiral shell.
Chen 博士用極方程式來描述那個螺旋形貝殼。
common collocation: polar equation
In Figure 6, the textbook marked the polar axis from point O outward.
在第 6 圖裡，課本把極軸從 O 點往外標了出來。
In the globe diagram, each polar point lay at one end of the diameter.
在那張地球圖裡，每個極點都位在直徑的一端。
Students plotted the flower shape with polar coordinates, not x and y.
學生用極座標而不是 x 和 y 來畫那朵花的形狀。
- radial
partly overlaps in geometry, but focuses on lines going out from a centre
- coordinate-based
broad descriptive phrase, not a precise technical equivalent
- Cartesian
describes the x-y coordinate system used instead of the polar one
用法筆記
Mostly appears in technical expressions such as 'polar coordinates', 'polar axis', and 'polar equation'. Distinguish from sense 1: that sense is geographical, while this one belongs to geometry.
常見錯誤
polar — 名詞
1. in geometry, a polar is a line connected with a chosen point and a circle. It cr
極線
幾何中和某點相對應的直線
in geometry, a polar is a line connected with a chosen point and a circle. It crosses the line from that point to the circle's centre at a right angle.
In geometry class, Maya drew the polar for point P outside the circle.
在幾何課上，Maya 畫出了圓外 P 點所對應的極線。
technical pattern: the polar for point P
The teacher showed how the polar meets the centre line at a right angle.
老師示範了極線如何和中心線形成直角。
describes the line's 90-degree relation
Each problem asked students to find the polar of a marked point.
每一題都要求學生找出某個標記點的極線。
On the board, Mr. Lin labelled the new line the polar of point A.
在黑板上，Lin 老師把那條新線標成 A 點的極線。
- polar line
the fuller two-word term used in some geometry materials
- pole-related line
plain-English paraphrase rather than a standard technical name
文法句型
the polar of a point
用法筆記
Mostly used in geometry lessons or textbooks, often in the pattern 'the polar of [point]'. Distinguish from adjective sense 3: this sense names the line itself.