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up to

资料来源 : pyDict

直到,达到…;由…决定;从事,搞

资料来源 : WordNet®

up to
     adj 1: busy or occupied with; "what have you been up to?"; "up to
            no good"
     2: having the requisite qualities for; "equal to the task";
        "the work isn't up to the standard I require" [syn: {adequate
        to(p)}, {capable}, {equal to(p)}, {up to(p)}]
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