The tour will take about an hour and a half.

这次参观大概需要一个半小时。

The tour will take about an hour and a half.

这次参观大概需要一个半小时。

That's OK.

好的。

If you are ready, ladies and gentlemen?

准备好了吗，女士们先生们?

If you are ready, ladies and gentlemen?

准备好了吗，女士们先生们?

Everything is OK.

一切都就绪了。