Polyfluoroprene
聚氟丁二烯
🗣️ 情景例句
We promise. Can we pay for our imports in RMB?
我们答应。请问，我们能否用人民币付款？
It's a shame these instructions are so complicated.
真遗憾，这些说明太复杂了。
Dear Abby,
亲爱的Abby，