Polyfluocarbon
[化] 多氟烃
🗣️ 情景例句
The government has adopted many measures to promote its economy.
政府采取了许多措施来发展经济。
I wonder if it will rain tomorrow.
我不知道明天会不会下雨。
I'm just calling to introduce myself. My name is Tang.
我打电话是向您作自我介绍，我姓唐。