I hope the relevant people can do STH to ensure the subway passengers' security and so on, we have enough for this.

我希望地铁相关人员能够做到保证地铁乘客的安全等这些实实在在的享受，这些于我们乘客足矣。

I have got to do STH.

我必须，一定，不得不做某事。

To have no other choice bt to do sth.

除了做某事没有其他的选择…

Have a disposition to do sth.

有…的倾向，露出…的意思。

Have the power, means or opportunity to do STH.

有能力、办法或机会做某事。