强制，必要的的英文

• imperative

• 强制:    force; compel; coerce
• 必要:    requisite; necessary; certai ...
• 的:    4次方是 The fourth power of 2 i ...
• 紧急的，必要的，强制的，祈使语气:    imperativea
• 必要的:    be essential to; constitutive; imperative; integral; mandatory; nec necessary; nece aryto/for; necessary to /for; needful; obligato; requisite