Do you care about my using your dictionary?
你介意我用你的字典吗?
I took the liberty of using your dictionary while you were away.
你不在的时候,我擅自用了你的字典。
When you're using a dictionary in your Python program, you'll more likely to want to test whether a particular key or value is contained in your dictionary.
在Python程序中使用dictionary时,很可能希望检查dictionary中是否包含特定的键或值。
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