英汉词典

1. 为…的起因；构成…的基础
    If something underlies a feeling or situation, it is the cause or basis of it.

    e.g. Try to figure out what feeling underlies your anger.
           努力找出你的愤怒之下潜藏的情感。
    e.g. ...the energy which seems to underlie all human success.
           人类一切成功背后似乎都不可缺少的干劲