Medical polymer
[化] 医用高分子
🧩 词语组成解析
🗣️ 情景例句
This dog is well trained.
这只狗受过很好的训练。
He that regards not a penny,will lavish a pound.
小钱不知节省，大钱将滥花。
tap water that is too hot to touch can be left to cool and is generally safe to drink.
水管中流出的烫手的水可以留下来冷却。这种水一般是安全的。