Isopycn
等体积线, 等容线
🗣️ 情景例句
You and Robbie and me.
你 ，Robbie和我。
I blew it.
我们吹了。
I'm afraid that he'll forget it if he misses so many lessons. He may even fail his Chinese exam.
如果他再缺这么多课，恐怕他会忘记很多的。他的汉语考试甚至会不及格。