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
What brand do you want?
你想要什么样的颜色？
Every why has a wherefore.
事出有因。
Only a few kilometres. I think it's about seven. OK. We're all here, now.
谩Ｎ颐嵌嫉狡肓恕?