1. They combed out the forest for the lost child.
    他们仔细搜索森林寻找那迷路的孩子。

2. She combed her long hair out.
    她梳理自己的长发。

3. She was trying to comb some useful things out of the tangle.
    她正试图从那堆乱糟糟的东西里找出些有用之物。

1. smoothen and neaten with or as with a comb

    e.g. comb your hair before dinner
           comb the wool

    Synonym: combdisentangle

2. remove unwanted elements

    e.g. The company weeded out the incompetent people
           The new law weeds out the old inequities

    Synonym: weed out