单词：steels
n. 刀组；各种钢（steel的复数）
n an alloy of iron with small amounts of carbon; widely used in construction; mechanical properties can be varied over a wide range
n a cutting or thrusting weapon that has a long metal blade and a hilt with a hand guard
n knife sharpener consisting of a ridged steel rod
v get ready for something difficult or unpleasant
v cover, plate, or edge with steel
n a cutting or thrusting weapon that has a long metal blade and a hilt with a hand guard
n knife sharpener consisting of a ridged steel rod
v get ready for something difficult or unpleasant
v cover, plate, or edge with steel
steels的用法和样例：
例句
- A more specific election straw in the wind can be found in yesterday's heavy buying of steel shares.昨天钢材股市上的股票被大量买进更明确地预示了大选即将来临。
- The price of steel jump sharply last year.去年钢材价格急剧上涨。
- A cargo of steel was lost at sea.有一货轮的钢材在海上遗失了。
- A solid solution of iron and up to 1 percent of carbon, the chief constituent of hardened carbon tool steels.马氏本，马登斯体一种由铁和高达百分之一的碳组成的溶液，是硬化碳工具钢的主要成分。