volatile

名词 volatile:

1. a volatile substance; a substance that changes readily from solid or liquid to a vapor

形容词 volatile:

1. evaporating readily at normal temperatures and pressures
2. liable to lead to sudden change or violence
   同义词：explosive
3. marked by erratic changeableness in affections or attachments
   同义词：fickle
4. tending to vary often or widely

1. Any of several highly volatile, flammable liquid mixtures of hydrocarbons distilled from petroleum, coal tar, and natural gas and used as fuel, as solvents, and in making various chemicals.
   石脑油一种高度挥发性的易燃液态碳氢化合物混合物，从石油、煤焦油和天然气中提炼出来，并用作石油、溶剂和制造各种化合物中
2. He has a highly volatile personality.
   他有着反复无常的个性。
3. The volatile political situation in Singapore upset the people.
   动荡不定的新加坡政局使人民感到不安。
4. Petrol is volatile.
   汽油容易挥发。

vol.a.tile

adj.（形容词）
Chemistry
【化学】
Evaporating readily at normal temperatures and pressures.
易挥发的：在正常温度和压力下易挥发的
That can be readily vaporized.
易蒸发的

Tending to vary often or widely, as in price:
易波动的，不稳定的：易于经常或大幅度变化的，如价格：
例句：
the ups and downs of volatile stocks.
易波动的股票沉浮

Inconstant; fickle:
易变的，多变的：
例句：
a flirt`s volatile affections.
浪荡子多变的爱情

Lighthearted; flighty:
活泼的，轻快的：
例句：
in a volatile mood.
轻快的心情

Ephemeral; fleeting.
短暂的，易逝的
Tending to violence; explosive:
易爆发的；爆炸性的：
例句：
a volatile situation with troops and rioters eager for a confrontation.
军队和暴民间爆炸性对立的局势

Flying or capable of flying; volant.
飞行的，能飞的；会飞的

来源：
French
法语
from Old French
源自 古法语
from Latin vol3tilis [flying]
源自 拉丁语 vol3tilis [飞的]
from vol3tus [past participle of] vol3re [to fly]
源自 vol3tus [] vol3re的过去分词 [飞]

【引伸】
vol.atile
n.（名词）
vol.atil.ity