n.
羊齿植物;蕨
ferning of cervical mucus
宫颈粘液羊齿
-扩展释义
-ferning的不同词性形态
词组
noun
1.A flowerless plant which has feathery or leafy fronds and reproduces by spores released from the undersides of the fronds. Ferns have a vascular system for the transport of water and nutrients.
‘Early nests are often in a shrub or on a bracken fern, and later nests are usually on the ground under a shrub, often a blueberry.’
‘The children collected leaves from plants such as ferns etc. which will be used for nature study purposes.’
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