Doubly-connected domain
[计] 双连通域
🧩 词语组成解析
doubly
[['dʌbli]]
adv. 加倍地, 双重地\\n[计] 双地
connected
[kə'nektid]
adj. 连接的，有关系的，有联系的;连贯的;有血统[婚姻]关系的;
v. 连接( connect的过去式和过去分词);
🗣️ 情景例句
I was very sad indeed to hear about it.
听了这件事，我的确非常难过。
After breakfast,I'll get ready go to work.
在早餐以后，我将准备好去工作。
The temperature will stay above zero in the day-time, but at night it will fall below zero again.
白天气温保持在零度以上，但夜间仍会降至零下。