Animal model
动物模型
🧩 词语组成解析
🗣️ 情景例句
It's important
这是很重要的
Oh, thank you.
噢，谢谢了。
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。