Colloidin
[医] 胶(体)变(性)质, 胶体素
🗣️ 情景例句
Most people I meet have some English ability, but the ones who work hard at it really stand out from the crowd.
我遇到的多数人都会点英语，但只有那些刻苦学习的人才鹤立鸡群，给我深刻印象。
To operate a steam locomotive
驾驶蒸汽机车
Are you French too?
你也是法国人吗？