on your toes
保持警惕或准备好应对
口语·提醒保持警惕
英文释义
being alert, vigilant, or ready for action
例句
You need to stay on your toes during the negotiation to catch any tricky details.
典故来源
源自拳击或舞蹈中保持脚尖着地以快速移动，引申为保持警觉。