Hardened and tempered steels
[化] 调质钢
🧩 词语组成解析
hardened
[['ha:dnd]]
a. 变硬的；坚定的
and
[ənd, ən,ænd]
conj. 和，与;而且;于是，然后;因此;
a. 回火的, 缓和的, 脾气...的
n. 刀组；各种钢（steel的复数）
🗣️ 情景例句
Five five five...one seven two oh. Hello? 555-1720
喂 喂?
Would you, please?
您肯帮忙？那太好了。
Well, it's getting late. I must be off now. Nice to meet you.
好啦，时间不早了。我得走了。见到你很高兴。