Menstruating
v. 行经, 月经来潮( menstruate的现在分词 )
✅ 同义词
🗣️ 情景例句
Building a city can be a disaster for the environment.
新建一个城市对于环境来说可能是一场灾难。
Knowledge will not be aquired without pain and application.
不花力气，不下功夫是得不到知识的。
which is, in fact, much more complicated.
地震波的运动实际比这要复杂得多。