Please wait behind the yellow line.

请在黄线后等候。

No longer will we wait behind barred doors and walls of stone!

我们不用再呆在这座石墙里面了！

In order to guarantee your safety please wait behind the yellow line.

乘客您好，为了您的安全，请站在黄线以内候车，谢谢合作。

I'd like to ask you something in private. Could you wait behind for a couple of minutes?

我想私下问你一点事。你能在别人走后稍留几分钟吗？

Route 507 to Tin King. Please wait behind the yellow line and mind the gap when boarding.

路线507往田景。乘客请勿超越黄线，上车时请小心月台边嘅空隙。