1. 编织；针织；机织
    If you knit something, especially an article of clothing, you make it from wool or a similar thread by using two knitting needles or a machine.

knit在线翻译

    e.g. I had endless hours to knit and sew...
           我整天无休止地编织缝纫。
    e.g. I have already started knitting baby clothes...
           我已经开始给宝宝织衣服了。

2. 使紧密结合；使严密；使紧凑
    If someone or something knits things or people together, they make them fit or work together closely and successfully.

    e.g. The best thing about sport is that it knits the whole family close together...
           体育运动最大的益处在于它使整个家庭紧密地团结在一起。
    e.g. Ordinary people have some reservations about their president's drive to knit them so closely to their neighbors.
           普通百姓对总统号召人们邻里间亲密相处的动机心存疑虑。

3. （骨头）愈合，接合
    When broken bones knit, the broken pieces grow together again.

    e.g. The bone hasn't knitted together properly.
           骨头愈合得不好。
    e.g. ...broken bones that have failed to knit.
           没能愈合好的断骨

4. 皱眉（表示恼怒、担忧）
    If you knit your brows or knit your eyebrows, you frown because you are angry or worried.

    e.g. They knitted their brows and started to grumble...
           他们皱着眉头抱怨起来。
    e.g. Billy's eyebrows knitted together in a little frown.
           比利眉头微皱。