quillwort造句

例句与造句

1. A very small tongue - shaped flap of tissue inserted on the upper surface of the leaves ( microsporophylls ) and sporophylls of certain clubmosses ( e . g . selaginella ) and quillworts ( isoetes )
   某些石松门（如卷柏）和水韭类植物（水韭属）的孢子叶上具有的一种极小的舌状结构， 。
2. It's difficult to find quillwort in a sentence. 用quillwort造句挺难的