Equidensen
等密度面
🗣️ 情景例句
Come on. you can do it!
来吧，你能行！
Any questions?
有什么问题吗？
About once a month. Not too often, because neither of us has much time. We both have too much work to do.
大约每月一次。不太经常写信，因为我俩的时间都很紧。我们都有做不完的事。