🧩 词语组成解析
[医]苜蓿属
🗣️ 情景例句
Be careful not to drink the water in__.
小心点儿，不要乱喝水。
Business is business.
公事公办。
and a period (which is the time it takes a wave crest to travel one wave length).
和周期（浪峰走过一个波长所需的时间）。