Don’t cut in line:

不要插队

例句：

Could you please not cut in line? We are all wait in line.

请你不要插队好吗?我们都在排队等候。

Queue up:

排队

例句：

Please queue up to register.

请排队挂号。

Huge big queue:

长队

例句：

There is a huge line at the counter.

柜台前排起了长队。