Pma
[化] 均苯四酸
🗣️ 情景例句
They do.
是的。
You're a good dancer.
你舞跳的真好。
He waved desperately to his companion, who had been water skiing for the last fifteen minutes.
他绝望地向他的伙伴挥手，他的伙伴在过去的15分钟里一直在滑水。