Plasmosan
聚乙烯基吡咯烷酮
🗣️ 情景例句
All right, I get the message.
好吧，我知道了。
I don't have the nerve to do it.
我没勇气去做。
and the search for oil has done more to improve deep drilling than any other mining activity.
寻找石油比其他任何采矿业对改进深孔钻探作的贡献都要大。