Bioactivator
生物活性剂
🗣️ 情景例句
so I can study it.
以便我好好研究。
A friend is never known till a man have need.
不到患难时，永远不能认识真正的朋友。
and won't suffer sleepless nights over share prices.
不会因股票价格的浮动而夜不能眠。