Permeabilities
n. 渗透性；透磁率, 导磁系数；弥漫
🗣️ 情景例句
Good-bye. And hope to see you soon.
再见。希望很快再见到你们。
I cannot afford two days off a week.
我忙得无法一星期抽出两天休假。
Late in the afternoon, the boys put up their tent in the middle of a field.
傍晚时分，孩子们在田野中央搭起了帐篷。