ephemeral
ephemeraladjective- lasting for a very short time
短暂的,昙花一现的
■(chiefly of plants) having a very short life cycle
(主指植物)生命短促的
noun- an ephemeral plant
短生植物
派生ephemeralitynounephemerallyadverbephemeralnessnoun语源- late 16th cent.: from Greek ephēmeros (see ephemera) + -al
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