Zinethyl
二乙锌
🗣️ 情景例句
Neither.
都不是。
Hope is a good breakfast, but a bad supper.
希望是美味的早点，但又是难咽的晚餐。
Which may keep company with the vessel for an hour without visible or more than occasional movement of wing.
它们随船飞行一小时也难得见其扇动一下翅膀。