Zb
abbr. 硼酸锌（zinc borate）
🗣️ 情景例句
Did you forget something?
你是否忘了什么东西吗？
Suppose you couldn't go on the trip.How would you feel?
假定你不能继续你的旅行，你将感觉如何？
He noticed that the straight part of the dance was different in the afternoon from what it had been in the morning.
他注意到下午舞蹈的直线部分与上午的不一样。