1. (令人焦虑或不快的)习惯，经常性行为，倾向
    A tendency is a worrying or unpleasant habit or action that keeps occurring.

    e.g. The army has become increasingly restless over the mounting separatist tendencies of the northern republics.
           军方对于北方几个共和国不断加剧的分裂倾向感到越来越不安。
    e.g. ...the government's tendency towards secrecy in recent years.
           近年来政府的保密倾向

2. (性格中不良的)倾向，偏好
    A tendency is a part of your character that makes you behave in an unpleasant or worrying way.

    e.g. He is spoiled, arrogant and has a tendency towards snobbery...
           他被宠坏了，傲慢无礼，而且经常自命不凡。
    e.g. Helen had been struggling against suicidal tendencies.
           海伦一直在压制心里的自杀念头。