Bioactive polymer
[化] 生物活性高分子
🧩 词语组成解析
a. 生物活性的
🗣️ 情景例句
We have done so much
我们已做了这么多的事
The room is always a mess after the children have been playing in here.
儿童玩过之后的房间，通常都是乱糟糟的。
Can your mechanics repair it?
你们的机械师能修好吗？