Tetrapion
四氟丙酸钠
🗣️ 情景例句
Robbie's cooking tonight, and dinner's at six thirty.
今晚Robbie作饭 晚餐六点半开始。
Would you like to go for a leisurely walk?
你想要去作一次悠闲的散步吗？
There was another unknown man.
还有一个不认识的人。