Hollow steel
[化] 中空钢
🧩 词语组成解析
hollow
['hɑlo]
adj. 空的;空洞的;虚伪的;空腹的;
n. 洞，坑;山谷;
vt.& vi. 挖空（某物），变空;挖出（孔、洞）;
adv. 完全，彻底;
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
I heard the professor of that class is very good.
我听说那个班的教授很好。
And our successful techniques, and to speak about our failures.
和成功技巧，并讲出我们的失败之处。
The strike is due to begin on Tuesday.
罢工定于星期二开始，