他的性情非常温和。
tāde xìngqíng fēicháng wēnhé 。
His temperament is very gentle.
性情的变化有时会影响人的决策。
xìngqíng de biànhuà yǒushíhuì yǐngxiǎng rénde juécè 。
Changes in temperament can sometimes affect a person's decisions.
了解他的性情有助于更好地与他相处。
liǎojiě tāde xìngqíng yǒuzhù yú gēnghǎo dì yǔ tā xiāngchǔ 。
Understanding his temperament helps in getting along better with him.