dorsalis[医] 背的, 背侧的dorsaladj.(动物）背的；背部的；背侧的dorsal funiculus背索dorsal lamella e背蜡片Dorsal fin spine脊椎骨dorsalis tetanus[医] 后弓性破伤风dorsal sensillum背感器dorsal mesentery[医] 背肠系膜(胚)dorsal diaphragm背隔dorsal tubercles背瘤dorsal carbuncle手发背, 手背发, 手背毒, 手背疔, 手疣dorsal expansion伸指肌腱扩张部

1. Its hump bumped as he took it up.
   当他端起来的时候，隆起来的盘底凹了下去。