Expectorative
a. 吐痰的；吐唾液的；咯血的；祛痰的(=expectorant)\\nn. 祛痰剂 (=expectorant)
🗣️ 情景例句
Tom gave Helen an apple in exchange for a piece of cake.
汤姆用一个苹果和海沦换一块蛋糕。
To make enemies, talk; to make friends, listen.
要成仇敌，多讲；要成朋友，多听。
How did the bees know exactly in which diection to fly?
蜜蜂是怎样确切地知道朝哪个方向飞呢？