Hardened and tempered steel
[化] 调质钢
🧩 词语组成解析
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
That's all right. We don't go to bed early.
那没关系。我们不会睡得太早。
Is this your book?
这是你的书吗?
This greatly reduced the speed of the ship,
这样一来,大大降低了船的航速。
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