根和根冠被一鞘 状 结构,即胚根鞘所覆盖.Both root and root cap are covered by a sheath - like structure called the coleorhiza.用来保护发育的胚芽的鞘状的结构.Coleoptile A sheath like structure that protects the developing plumule in grasses.胚根鞘:保护幼根的鞘状结构....
我常和他们混在一起，但是从来没觉得跟他们是一类人。I went around with them, but never felt like one of them.有一类人似乎被遗忘了，就是那些领养老金的人。One group of people seems to be forgotten, namely pensioners.他感到他们硬把自己划入了某一类人。He felt they had pigeonholed him....