Proppant
支撑剂
🗣️ 情景例句
Cloning technology is good news for those patients who need organ transplants.
克隆技术对于那些需要器官移植的病人来说是个福音。
While the grass grows the horse (or steed) starves.
远水救不了近火。
I've been here before.
我以前来过这里。