性情的英文：
nature
temperament

参考例句：

Good nature;kind-hearted
性情善良

a resilient temperament.
开朗的性情)。

Soul mate
性情相同的人、精神上的伙伴、性情相同

He is excitable by temperament. =He has an excitable temperament.
他性情易兴奋。

an eccentric person
性情古怪之人

emotions alien to her temperament.
和她的性情格格不入的情感

Good-natured
脾气好的,性情和善的

Ill nature; bad nature
性情恶劣;心术不正

The man has a streak of cruelty in his character.
那个汉子性情有些残酷。

He was short, gruff and fiery
他身材矮小，性情乖戾暴躁。

nature是什么意思：
n. 大自然；自然方式；天性；本质；种类

natural | natural sign
白键|本位记号

The method is a natural.
这方法一定灵。

Is there necessity in nature?
自然界是否存在必然性？

It is in the nature of lightningrods.
它具有避雷针的性质。

natural language
自然语言(指人类语言集团的本族语,与世界语或计算机语言等人造语言相对)

temperament是什么意思：
n. 气质，性质，性情

He is excitable by temperament. =He has an excitable temperament.
他性情易兴奋。

He is a man with an artistic temperament.
他是个有艺术家气质的男子。

He has a romantic temperament.
他富有浪漫气质。

The poet is highly nervous and volatile in temperament.
诗人生性神经过敏，喜怒无常。

The difference among these revisionist conservatives is really one of temperament
这两派愿意改革的保守分子之间的分歧，实质上是气质上的不同。