marsh elder

同根派生

tall annual marsh elder common in moist rich soil is central North America that can cause contact dermatitis; produces much pollen that is a major cause of hay fever.
一種一年生的、高大的沼生接骨木，它常見于北美中部的潮濕沃土上，造成接觸性皮炎；產(chǎn)生許多花粉，是引起花粉熱的主要原因。
Some elder people enjoy Beijing opera immensely.
有些上了年紀(jì)的人非常喜愛京劇。
It's dangerous to be alone in the marsh.
一個(gè)人在沼澤地里是很危險(xiǎn)的。
He is no less clever than his elder brother.
他和他的大哥一樣聰明。
The elder son has precedence over the younger one.
長(zhǎng)子較之非長(zhǎng)子享有優(yōu)先權(quán)。