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
Many people doubt this candidate's political motivation.
许多人对这位候选人的政治目的表示怀疑。
We are thinking of placing an order for your Flying Pigeon Brand bicycles. We would be very grateful if you could make us an offer for 200 ones with details.