Scarce metals
稀有金属
🧩 词语组成解析
scarce
[skɛrs]
adj. 缺乏的，罕见的;
adv. 勉强;仅仅;几乎不;简直不;
五金
🗣️ 情景例句
But it is not polite to ask older people their age.
但问老人的年龄是不礼貌的。
Would you like to leave your telephone number?
你想要留下你的电话号码吗？
I promise.
我保证。