Aerochemistry
航空化学
🗣️ 情景例句
You blew it.
你办黄了。
He who wants a mule without fault, must walk on foot.
如要骡子无缺点，只有自己徒步行。
I had left it on a chair beside the door and now it wasn't there!
我曾把它放在门边的椅子上，可这会儿不见了！