algebra

algebra — noun

1. the branch of mathematics where letters such as x and y stand in for unknown num

1.名詞B1
釋義

the branch of mathematics where letters such as x and y stand in for unknown numbers, and rules are used to work out what those numbers are.

例句

Dimitri found algebra easier than geometry once her teacher explained how to solve for x.

uncountable: 'algebra' takes no article

Most students in Taiwan begin learning algebra in their first year of junior high school.

collocation: learn / study + algebra

文法句型

uncountable noun, no plural

用法筆記

Uncountable in everyday use: never 'an algebra' or 'algebras'. The plural form appears only in advanced mathematics, where it refers to specific abstract systems and is rare outside university textbooks.

常見錯誤

❌I have two algebras tomorrow.
✅I have two algebra classes tomorrow.
💡algebra itself is uncountable; add a counter noun like 'class' or 'lesson'.
❌She is studying an algebra.
✅She is studying algebra.
💡no article before the subject name.