The rain will rust the iron roof.

雨水会使铁皮屋顶生锈。

My bike has rusted and needs oil.

我的自行车生锈了, 需要上油。

A zinc coating is applied to the steel for rust protection.

镀锌层是用来防止钢铁生锈的。

The technique of comprehensive cocooning can keep the cocooned from rusting for 2-5 years.

综合封被封件2～5年不生锈。

Iron is apt to rust.

铁易生锈。

The knife got rusty.

这把刀生锈了。