流动医院
Ambulance Volante
ambulance cart
ambulance cargo
缩写为：ambulance
ambul意思为walk:走动
somnambulate:梦游 somn=sleep;+ambul=walk;+-ate构成动词
somnambulate:睡眠时走动=梦游
noctambulism:梦游症；梦中步行
noctambulist:梦游者
noctambulant:夜间行走的；梦游的
ambulant:（walking）走动的；流动的 +-构成adj.与动词组合构成adj.相当于现代分词的词尾ing
perambulate:游历；巡游 +per-=throughout/thoroughly;=-ate构成v.
perambulator:婴儿车（到处走的车子）+-or:构成n.表示物
circumambulate:环行（环绕着走）circum-=around,about;+-ate构成v.
circumstance:环境
amb:是ambul的异形同义体
amble:缓行；从容的走(go walking:散步)+-le=go
ramble:闲逛；漫步（走的再从容一些）+r-/re-=again
preamble:序言；前文 +pre-=before
