usual
adj.
late 14c., from Old French usuel "current, in currency (of money), valid" (13c.) and directly from Late Latin usualis "ordinary," from Latin usus "custom" (see use, v.). The usual suspects is from a line delivered by Claude Rains (as a French police inspector) in "Casablanca" (1942).
〔李〕[us;-uala.] a.通常的，平常的，惯常的 ←ut,us (L uti,usus)=to use 利用
〔蒋〕[us用，-ual…的，用，使用→通常使用的，平常惯用的] 通常的，平常的，惯例的