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Methane may have extraterrestrial significance.是什么意思？

Methane may have extraterrestrial significance.

甲烷具有星际意义.

相关词汇
methane May have extraterrestrial significance

methane

n. <化>甲烷，沼气；

May

aux. 可以，也许，会，但愿；n. [May]五月，山楂属植物，（五朔节装饰用的）绿枝花枝，（春天开花的）绣线菊属植物；

have

aux. 用以构成完成式及完成式的不定式，表示已经…；vt. 有，具有，拿，取得，从事，必须，不得不；n. 〈口〉有产者，有钱人，富国，〈英俚〉欺骗，诈骗；

extraterrestrial

adj. 地球外的，地球大气圈外的；n. 外星人；

significance

n. 意义，意思，重要性；
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