Electron emission
[计] 电子发射
🧩 词语组成解析
electron
[i'lektrɔn]
n. 电子;
🗣️ 情景例句
He'll do anything to avoid getting down to math lessons,
他老是设法想逃避数学，
I invited him to come back, but he wouldn't.
我请他回来，但是他不肯。
He came to the point at once.
他一下子就说到了点子上。