Protective colliod
[机] 保护胶体
🧩 词语组成解析
🗣️ 情景例句
I maintain that the most important thing is having good friends.
我认为最重要的是有好朋友。
A man who has friend must show himself friendly.
与朋友交，必须友好相处。
During a bullfight, a drunk suddenly wandered into the middle of the ring.
在一次斗牛时，一个醉汉突然溜达到斗牛场中间，