W.
[医] 韦内(X线硬度单位,X线穿透力单位)
🗣️ 情景例句
Now would be a good time, I think, for some introductions.
我想，下面是作些介绍的时候了。
Don't open your book.
别打开书。
How long have you lived here?
您在这里住了多长时间？