这个挖泥船从不停歇，它必须整日整夜地运转来防止河口被泥沙淤塞。

It never stops and must run around the clock to prevent the river mouth from silting up.

youdao

墨累-达令的河口开始被泥沙淤塞，这是过度开发的有力信号。

The mouth of the river was beginning to silt up-a powerful symbol of over-exploitation.

youdao

墨累-达令的河口开始被泥沙淤塞，这是过度开发的有力信号。

The mouth of the river was beginning to silt up-a powerful symbol of over-exploitation.

youdao