分词翻译
底的英语翻译：
a copy kept as a record; base; bottom; end; fundus; the truth of a matter
【医】 base; basement; bases; basi-; basio-; basis; batho-; bathy-; fimdi
floor; fundus; pavimentum; solum壳的英语翻译：
carapace; hull; rind; shell; shuck
【化】 cover
【医】 crust; crusta; crustae; putamen; shell; testa
