Nbf
[计] 传输协议
🗣️ 情景例句
I am calling on behalf of the Private Teacher Company.
我代表家教公司给您打电话。
We can't decide where to go.
我们不能决定去那里。
I'm sorry, sir.I can't change a ten-pound note.
对不起，我找不开10英镑的钞票。