make or become stiff or rigid 使僵硬;使挺直 [with obj.]he stiffened his knees in an effort to prevent them trembling. 他挺直膝盖以使之不再颤抖。 [no obj.]my back stiffens up and I can't bend. 我的后背僵硬,因此我弯不下腰。 ■[with obj.]support or strengthen (a garment or fabric), typically by adding tape or an adhesive layer (通过加布条或粘合层)使(衣服,织物)变硬挺 ■(figurative)make or become stronger or more steadfast (喻)使更坚强;使更坚定 [with obj.]outrage over the murders stiffened the government's resolve to confront the Mafia. 对谋杀的愤怒更加坚定了政府对抗黑手党的决心。 [no obj.]the regime's resistance stiffened. 那个政权的抵抗更强了。