Methagen
甲烷桿菌
??? 情景例句
Can you come down on the sticker price?
你能賣得比標(biāo)價低一些嗎？
If you want knowledge, you must toil for it.
若要求知，必須刻苦。
They put their hands behind their backs, so you can't see their hands.
他們將手放在背后，這樣你就看不見他們的手了。