必不可少 Essential ; obvious ; absolutely necessary ; indispensable

必不可少的 essential ; indispensable ; of the essence ; vital

必不可少的东西 a breath of life ; DERRICK

必不可少的人 indispensable

必不可少的主要部分 life blood ; life's blood

对必不可少 be indispensable to

两者必不可少 Both essential ; Two essential ; Both indispensable

必不成少的 essential

国强不必霸 A country is not destined to pursue hegemony as it grows in strength