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  • make oneself useful
    do something that is of some value or benefit to someone 做对人有利的事
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  • Adjective
    1. being of use or service;
    "the girl felt motherly and useful""a useful job""a useful member of society"
    2. of great importance or use or service;
    "useful information""valuable advice"
    3. capable of being turned to use or account;
    "useful applications of calculus"
    4. having a useful function;
    "utilitarian steel tables"