aged; always; old; outdated; tough; very 【医】 palae-; paleo-; presby-
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