看和触不能同时出现,它们在不同的时刻逐个出现。
Seeing and touching can't appear at the same time; they appear one at a time, at different moments.
不同的命名空间在不同的时刻创建,有不同的生存期。
Name Spaces are created at different moments and have different lifetimes.
假设您希望在某天中不同的时刻删除一个文件。
So, say that you want to delete a file at different times of the day. You can create a variable that checks to see what time it is.
But the objects are at different locations at a given time.
但是它们在同一时刻分别在不同的位置
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