在叶鞘裹住的幼叶下部呈现螺旋状.A spiral deformation occured in the lower part of the young leaf enclosed in the sheath.包裹最低两个茎节的叶鞘也应坚硬.The leaf sheath enclosing the lowest two internodes should be stiff too.本实验以高秆野生稻的幼嫩叶鞘和茎为材料.Leaf she...
一位上了年岁的(女)病人坐在轮椅上.An elderly patient was sitting in her wheelchair.这位女病人还不能走动; 她仍然需要卧床休养.The sick woman isn't mobile yet; she still has to stay in bed.这个女病人动过手术后病情大为好转.The patient is making good progress ( ie is get...