steels
Steel is a very strong metal which is made mainly from iron. Steel is used for making many things, for example bridges, buildings, vehicles, and cutlery.
steel pipes.
钢管。
the iron and steel industry.
钢铁工业。
steels , steeling , steeled
If you steel yourself, you prepare to deal with something unpleasant.
Those involved are steeling themselves for the coming battle.
那些参与者正准备应对即将到来的战斗。