代

dài to substitute; to act on behalf of others; to replace; generation; dynasty; age; period; (historical) era; (geological) eon

做

zuò to do; to make; to produce; to write; to compose; to act as; to engage in; to hold (a party); to be; to become; to function (in some capacity); to serve as; to be used for; to form (a bond or relationship); to pretend; to feign; to act a part; to put on appearance

ppt 接单

jiē dān order (for goods etc)

渠道

qú dào irrigation ditch; (fig.) channel; means

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