Hydrocolloid
n. 水状胶质, 水状胶体\\n[医] 水胶体
🗣️ 情景例句
She exchanged a few words with the foreigner.
她和那个外国人交谈了几句。
Foam plastics are applied to protect the goods against press.
泡沫塑料用来防止挤压。
There was also a great deal of machinery on display.
参展的还有很多机器，