Polyphenylether
聚苯醚
??? 情景例句
Here you are.
茶給你。
I'm going to show him how to speak French.
我正要指點(diǎn)他如何講法語(yǔ)。
We had better go back to the station now,Ken.
肯，我們現(xiàn)在最好回車(chē)站去。