tungsten
(also wolfram) n [U]
chemical element, a hard grey metal used in making steel alloys and the filaments of electric light bulbs 钨. =>App 10 见附录 10.
🗣️ 情景例句
Is he a client?
他是顾客吗?
He guessed the train would come in early.
他猜想火车会很早到达。
Many pedal their tricycles, but most of them prefer to push or drag them.