Unavailability
[计] 无效性, 不可用性
🗣️ 情景例句
Perhaps we could see the house this weekend.
也许这周末我们会去看看这栋房子。
The student felt very shy as he stood in front of the class.
那个学生站在大家的跟前时，感到非常难为情。
As the time and cost of making a chip drop to a few days and a few hundred dollars,
由于制造一块芯片的时间已缩短至几天，费用也只有几百美元，