line is busy

• n. 讲话中

line is busy的用法和样例：

例句

1. I tried to call Mr. Cooper, but the line is busy.
   我试着打电话给库珀先生，但是线路忙。
2. I tried to call Mr. Smith, but the line is busy.
   我给史密斯先生的打电话，结果占线了。
3. The line is busy.
   占线。
4. I'm sorry, sir, the telephone line is busy.
   对不起，先生，电话占线。