Double covalence
[化] 雙共價
?? 詞語組成解析
double
['d?bl]
adj. 雙的;兩倍的;兩面派的;雙人用的;
vt. 使加倍;把…對折;重復;
vi. 加倍，加倍努力;快步走;
adv. 兩倍地;雙重地;
n. 兩倍;雙精度型;
doub二，雙+le反復 → 反復兩倍 → 翻倍
n. 共用電子對數, 共價\\n[化] 共價
??? 情景例句
I am looking forward to seeing you.
我正盼望能見到你
Two is company, but three is none.
兩人成為伴，三人不結侶。
She entered the station twenty minutes before the train was due,
在火車進站20分鐘前她就進了車站。