Quality steels
[化] 优质钢
🧩 词语组成解析
n. 刀组；各种钢（steel的复数）
🗣️ 情景例句
When you feel your life is threatened, just dial 999 to get help.
当你的生命受到威胁的时候，拨打 999 求救。
He always keeps his words.
他总是信守诺言。
I felt very nervous when I went into his office.
我走进他的办公室，感到非常紧张。