square kilometer

square kilometer — noun

1. a unit for measuring area, equal to the area inside a square shape that measures

1.名詞A2
釋義

a unit for measuring area, equal to the area inside a square shape that measures one kilometer on each side — one square kilometer is the same as 1,000,000 square meters.

例句

The national park covers an area of about 4,500 square kilometers.

covers + number + square kilometers

Paris has a population density of over 20,000 people per square kilometer.

per square kilometer — population density pattern

同義詞
  • sq km

    written abbreviation, common on maps and in statistics

文法句型

number + square kilometer(s)

square kilometer(s) + of + noun

常見錯誤

The city is 100 kilometers big.
The city covers 100 square kilometers.
💡'kilometers' measures length, not area; use 'square kilometers' for area.