Polyphenylether
聚苯醚
🗣️ 情景例句
You probably heard about it. We have private teachers in our holiday.
或许你已经听说过。我们交大的学生在假期间做家教。
Go for it!
加油！
I left at 6:00 so that I could catch the train.
我六点钟出门，以便赶上火车。