1. 性格;性情;秉性
    Your temperament is your basic nature, especially as it is shown in the way that you react to situations or to other people.

temperament的意思

    e.g. His impulsive temperament regularly got him into difficulties...
           他容易冲动，经常因此惹麻烦。
    e.g. She was furtive and vicious by temperament.
           她本来做事就偷偷摸摸，心肠狠毒。

2. 爱发脾气;脾气乖张;喜怒无常
    Temperament is the tendency to behave in an uncontrolled, bad-tempered, or unreasonable way.

    e.g. Mark does have a habit of allowing his temperament to get the better of him...
           马克的确经常由着自己的性子来。
    e.g. Some of the models were given to fits of temperament.
           有些模情喜怒无常。