Semigel
半凝胶
🗣️ 情景例句
Yes, I'm serious.
是的，我是真心的。
I don't think you'll have any difficulty in pushing sales.
我认为你推销时不会有任何困难。
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）。