Matrix steel
[化] 基体钢
🧩 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
Say what?
你说什么？
Do you usually do arithmetic on Sunday?
你通常在星期日做算术吗？
There were twenty cars in the race.
参加比赛的有20辆汽车。