Methylethanolamine
[化] 甲基乙醇胺
🗣️ 情景例句
When's the next class?
下一次上课什么时候？
If he doesn't help him, I will.
如果他不，我将帮助他。
If we remain inveterate smokers, it is only because we have so often experienced the frustration that results from failure.
如果我们烟瘾大，戒不掉，那是因为屡戒屡败，失去信心。