1 [C] an official rule of a country or state that says what people may or may not do 法律；法规；法令: There's a new law about wearing seat belts in the back of cars. 有一项新法令规定汽车后座乘客必须系安全带。

2 the law [U] all the laws in a country or state （整体的）法律，法规，法令: Stealing is against the law. 偷窃是违法行为。to break the law 违法to obey the law 守法 ☞Look at legal. 参看legal。

3 [U] the law as a subject of study or as a profession 法律学；法学；法律专业: She is studying law. 她在念法律。My brother works for a law firm in Brighton. 我哥哥在布赖顿一家律师事务所工作。 ☞Look at legal. 参看legal。

4 [C] (in science) a statement of what always happens in certain situations or conditions （科学）定律: the laws of mathematics/gravity 数学╱引力定律