steel

名词 steel:

an alloy of iron with small amounts of carbon; widely used in construction; mechanical properties can be varied over a wide range

a cutting or thrusting weapon that has a long metal blade and a hilt with a hand guard

同义词：sword, blade, brand

knife sharpener consisting of a ridged steel rod

动词 steel:

get ready for something difficult or unpleasant

同义词：nerve

cover, plate, or edge with steel