Stt
敏感试验
🗣️ 情景例句
Lacks vitality.
缺乏活力。
How big?
多大？
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。