英汉词典

1. 矛盾;不和;争执
    If there is friction between people, there is disagreement and argument between them.

friction的反义词

    e.g. Sara sensed that there had been friction between her children...
           萨拉感觉到她的孩子之间有过争执。
    e.g. The plan is likely only to aggravate ethnic frictions.
           这一方案很有可能只会加剧种族冲突。

2. 摩擦力
    Friction is the force that makes it difficult for things to move freely when they are touching each other.

    e.g. The pistons are graphite-coated to reduce friction.
           活塞上涂了一层石墨以减小摩擦力。

3. 摩擦
    Friction is the rubbing of one object against another.

    e.g. ...the friction of his leg against hers.
           他和她的腿之间的擦蹭