Sent_en: 2zh American military officials, as well as some officials within the White House, however, have urged the administration to retain more ambiguous wording from the Bush era, which says that nuclear deterrence is only the primary role of American nuclear weapons, which would leave open the option of using nuclear weapons against enemies that threaten the US with chemical or biological weapons.
Sent_yy: 然而，美国军方官员以及白宫内的一些官员敦促美国政府保留布什时代的较含糊不清的措辞，也就是对外宣称核威慑只是美国核武器的基本作用，这样美国就可能使用核武器对付用化学或生物武器威胁美国的敌人。