n. 钥匙;(打字机等的)键;关键,线索,秘诀;(音乐的)调;
vt. 键入;锁上;调节…的音调;提供线索;
vi. 使用钥匙;
adj. 关键的;主要的;
🗣️ 情景例句
I'm sorry but tonight you can borrow the car.
很抱歉现在不行,但是晚上你可以借用这车子。
What we learn with pleasure we never forget.
乐意学的东西决不会忘记。
As a shipbuilder, Cockerell was trying to find a solution to the problem of the wave resistance which wastes a good deal of a surface ship's power and limits its speed.