alternate SC交替的副载波alternatev.交替；轮流adj.间隔的；轮流的；交替的n.代替者；供替代的选择alternate transmission交替传输alternate capital plan陪都计划alternate installation备用装置alternate distribution交替式分布alternate grip hanging正反握悬垂alternate row mutching隔行盖草Alternate Target Point备用目标点alternate year bearing隔年结实alternate offset track交替偏移磁道alternate index record辅助索引记录

1. A radical leaf was rising out of the soil.
   一片根生叶从土壤中长了出来。
2. Unlike a leaf, a cladode has buds on its surface.
   但节与节间明显，节上能分枝，生叶和开花。