Tonicum
补剂
🗣️ 情景例句
Mm-hmm. Let's go ...
嗯哼。我们走吧……
You haven't been around much lately,have you?
你近来不大出来走动了，是吧？
I'm calling about mistake on our last invoice.
我打电话来，是因为上回的发票有错。