Helicene
螺烯
🗣️ 情景例句
It's all my fault. I'll try to make it up to you.
这事儿全怪我。 我会尽力补救。
Does it make any difference to you whether we have our lesson at two o'clock or at three o'clock?
我们在两点上课还是在三点上课，你觉得有关系吗？
Thanks. I see them now.
谢了，我现在看到了。