義務的

(1)required by obligation or compulsion or convention; "he made all the obligatory apologies"

(2)義務、衝動、慣例によって必要とされる

(3)required by rule; "in most schools physical education is compulsory"; "attendance is mandatory"; "required reading"

(4)規定通りに必要である

(5)under a moral obligation to do something

(6)道徳的責任のもとで何かをする

(7)morally or legally constraining or binding; "attendance is obligatory"; "an obligatory contribution"

(8)道徳的にまたは法的に強いるまたは係わる

(1)