Machine steel
[化] 机械零件用钢
🧩 词语组成解析
steel
[stil]
n. 钢，钢铁;钢制品;兵器;钢铁工业;
vt. 包上或镀上钢;使坚定;
adj. 钢制的;钢铁业的;坚强的;[色彩]青灰色的;
🗣️ 情景例句
Always remember to wash your hands before eating.
用餐前谨记要洗手。
I'm sorry, but I can't find the book you lent me.
很抱歉！我找不到你借给我的那本书了。
I turned round again.
又一次回过头去，