🧩 词语组成解析
[医] 石蚕属
🗣️ 情景例句
What line of work are you in?
你做哪一行的？
Little pigeons can carry great messages.
少年也可以成大事。
torn by the noise of the taxicabs, lorries and buses, and thronged ceaselessly by great crowds.
街道上充斥着汽油味和有毒气体，出租汽车、卡车、公共汽车的噪音刺耳难忍，络绎不绝的人群挤来挤去。