Pma
[化] 均苯四酸
🗣️ 情景例句
I think it's about time we got going.
我想差不多是告辞的时候了。
When I present my views on the competitive products, I will refer to the patent situation.
专利的情况会在说明竞争产品时一并提出。
Which do you prefer, horse riding or shooting?
你比较喜欢哪一种呢，骑马还是射击？