Peltogen
一种浮选剂
🗣️ 情景例句
Yes, most of them are, except for the plastic parts.
对，除了塑料制品其他都是。
True friendship is a plant of slow growth.
真正的友谊像是生长缓慢的植物。
The clouds had come down so suddenly we had no warning.
乌云突然出现，我们丝毫没有觉察。