柯林斯词典beef up (beefing,beefed,beefs) 1. PHRASAL VERB If you beef up something, you increase, strengthen, or improve it. 加强 ...a campaign to beef up security. …一场加强治安的运动。 Both sides are still beefing up their military strength. 双方仍在增强各自的军事力量。 返回 beef up