Cond
n. 气孔导度；电导率；条件数
🗣️ 情景例句
How much are the dues?
会费多少？
Are you sure?
你确信吗？
What about the Natural History Museum? So far as I know, it's free.
去自然历史博物馆怎么样？据我所知，那儿是免费的。