My friend believed it was best to strike while the iron is hot.

我朋友认为趁热打铁（to strike while the iron is hot）最好。

After listening to this story, you should strike while the iron is hot!

听完这个故事后，你应该趁热打铁！

We need to strike while the iron is hot.

趁热打铁。

What are you interested in? Strike while the iron is hot.

你对什么感兴趣？趁热打铁。

My friend believed it was best to strike while the iron is hot. He wanted to take action at the best time possible and not wait.

我朋友认为最好趁热打铁，他想在时机最佳时行动，不想等待。