I staggered and had to clutch at a chair for support.

我踉跄了几步，不得不抓住一把椅子扶稳。

It is useless to clutch at a straw.

抓救命稻草是无济于事的。

A drowning man will clutch at a straw.

将要溺死的人连一根稻草也要去抓。

A drowning man will clutch at a floating straw.

一个即将被淹死的人会连一根漂浮的稻草也要抓住的。

Why do we clutch at this baggage, even when were desperate to move on?

为什么有人仍然抓住行李不放，即使我们不顾一切的向前看。