Cesium hollow cathod
[电] 空心阴极
🧩 词语组成解析
n. 铯\\n[化] 铯Cs
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;
🗣️ 情景例句
I have to think about it.
我得想一想。
We are in great need of Grade A.
我们急需一等品。
Oh, thanks very much. I'd love to. What time is it going to start?
噢，非常感谢。我当然想去。聚会什么时候开始？