生锈

The rain will rust the iron roof.

雨水会使铁皮屋顶生。

My bike has rusted and needs oil.

我自行车生了, 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。

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

合封技术以保证被封件2～5不生。

Iron is apt to rust.

铁易生。

The knife got rusty.

这把刀生了。