dirt和bird发音一样吗

发音一样，都含有/ɜː/音。
I started to scrub off the dirt.

我开始擦除灰尘。

His clothes were covered in dirt.

他的衣服沾满了污垢。

He brushed the dirt off his jacket.

他拂掉衣服上的灰尘。

I picked up an injured bird by the road.

我在路边捡到一只受伤的小鸟。