Question

unstable adj.不稳定的；易变的 (1) 氢过氧化物是不稳定的化合物。 The adjective unstable means the opposite of stable. Stable is derived from the Latin base word stare meaning “to stand.” If a building, family, person, bridge, or chemical solution is stable it will “stand still,” even if something unexpected happens. On the other hand, if a person or thing is unstable and stress is applied, he, she, or it is likely to shift position, possibly in a dangerous way.

Accepted Answer

英 [ʌn'steɪbl] 美 [ʌn'steɪbl] (1) The hydroperoxides are unstable compounds. To be unstable is to lack stability, meaning things could change without warning, like an unstable bookshelf that is likely to fall down. If you are unstable emotionally, you might be ecstatically happy one minute and horribly depressed and angry the next. 1[ADJ-GRADED 能被表示程度的副词或介词词组修饰的形容词]不稳定的；不可靠的；动荡的 You can describe something as unstable if it is likely to change suddenly, especially if this creates difficulty or danger. After the fall of Pitt in 1801 there was a decade of unstable government...1801年皮特倒台后，政府经历了10年的动荡。The situation is unstable and potentially dangerous.情况不稳定，可能有危险。2[ADJ-GRADED 能被表示程度的副词或介词词组修饰的形容词]不牢固的；松脱的 Unstable objects are likely to move or fall. Both clay and sandstone are unstable rock formations.黏土和砂岩都是不牢固的岩石构造。3[ADJ-GRADED 能被表示程度的副词或介词词组修饰的形容词]（情绪）不稳定的，波动的 If people are unstable, their emotions and behaviour keep changing because their minds are disturbed or upset. He was emotionally unstable...他情绪不稳定。Coleridge was also a highly unstable person.科尔里奇还是个情绪非常不稳定的人。

英语单词	unstable
英美音标	英 [ʌn'steɪbl] 美 [ʌn'steɪbl]
中文释义	adj.不稳定的；易变的
英语例句	(1) The hydroperoxides are unstable compounds.
中文例句	(1) 氢过氧化物是不稳定的化合物。
vocabulary简明	To be unstable is to lack stability, meaning things could change without warning, like an unstable bookshelf that is likely to fall down. If you are unstable emotionally, you might be ecstatically happy one minute and horribly depressed and angry the next.
vocabulary扩展	The adjective unstable means the opposite of stable. Stable is derived from the Latin base word stare meaning “to stand.” If a building, family, person, bridge, or chemical solution is stable it will “stand still,” even if something unexpected happens. On the other hand, if a person or thing is unstable and stress is applied, he, she, or it is likely to shift position, possibly in a dangerous way.
柯林斯解释	1 [ADJ-GRADED 能被表示程度的副词或介词词组修饰的形容词]不稳定的；不可靠的；动荡的 You can describe something as unstable if it is likely to change suddenly, especially if this creates difficulty or danger. After the fall of Pitt in 1801 there was a decade of unstable government... 1801年皮特倒台后，政府经历了10年的动荡。 The situation is unstable and potentially dangerous. 情况不稳定，可能有危险。 2 [ADJ-GRADED 能被表示程度的副词或介词词组修饰的形容词]不牢固的；松脱的 Unstable objects are likely to move or fall. Both clay and sandstone are unstable rock formations. 黏土和砂岩都是不牢固的岩石构造。 3 [ADJ-GRADED 能被表示程度的副词或介词词组修饰的形容词]（情绪）不稳定的，波动的 If people are unstable, their emotions and behaviour keep changing because their minds are disturbed or upset. He was emotionally unstable... 他情绪不稳定。 Coleridge was also a highly unstable person. 科尔里奇还是个情绪非常不稳定的人。

Unstable Stable Adj Graded 能被表示程度的副词或介词词组修饰的形容词 Meaning Change Fall 英