Ccs
[化] 中國化學會
??? 情景例句
Anything to drink?
要喝點什么嗎？
There's still hope.
還是有希望的。
The real dividing line between continents and oceans occurs at the foot of a steeper slope.
大陸和海洋的真正分界線是在陡坡腳大陸架慢坡