adj. 1.飘忽不定的；(行为等)古怪的，反常的；(心意、爱情等)乖僻的，反复无常的。 2.【天文学】轨道无定的；【地质学；地理学】漂移性的；【医学】间断无定的，不规律的；游走的。 n. 1.奇人，怪人；反复无常的人。 2.【地质学；地理学】漂砾。 短语和例子 an erratic star 游星。 adv. -cally ,-ism n.
liable to sudden unpredictable change; "erratic behavior"; "fickle weather"; "mercurial twists of temperament"; "a quicksilver character, cool and willful at one moment, utterly fragile the next" 同义词：fickle, mercurial, quicksilver,
likely to perform unpredictably; "erratic winds are the bane of a sailor"; "a temperamental motor; sometimes it would start and sometimes it wouldn''t"; "that beautiful but temperamental instrument the flute"- Osbert Lancaster 同义词：temperamental,
having no fixed course; "an erratic comet"; "his life followed a wandering course"; "a planetary vagabond" 同义词：planetary, wandering,
例句与用法
1.
He was like a stormy, erratic boy . 他好象是个性急的古怪的孩子。
2.
The old man had always been cranky and erratic . 那老头儿性情古怪，反复无常。
3.
Foliation, bloom, and production became erratic . 萌芽、开花和结果变得很不正常。
4.
The speck would be jarred into more erratic motion . 微粒将受到更为反复无常的冲击。
5.
The prosody is erratic . 就诗体而论，有点古怪。
6.
He is a good fellow, but then he is so erratic . 他是个好人，但是另一方面，他又是那样的乖僻。
7.
My living arrangements were lavish but also a bit erratic . 我的住处布置得很考究，但也有不少毛病。
8.
The radio flux is extremely variable, exhibiting erratic outbursts . 射电流量变化极大，显示出无规则爆发。
9.
The erratic fluctuation of market prices are in consequence of unstable economy . 经济波动致使市场物价忽起忽落。
10.
He was beginning to be able to interpret the erratic gestures of her left arm . 他开始能够弄清楚她不规则地挥动左臂的含义。
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