Pentafluorinated
五氟化的
🗣️ 情景例句
I'd like to leave a message for him, if you don't mind.
你若不介意的话，我想留话给他。
This is a price list.
这是一张价格表。
'I'm hanging this picture on the wall,' I answered.
我正将图片挂到墙上去呢，我回答