tip sb. over the edge 什么意思

tip over the edge bring about a noticeable change; (cause to) develop into another status

引起明显变化；(使)进入另一状态

Exercising too much with no iron supplements will tip one over the edge into a more serious deficiency.

锻炼太多而又未服铁质补剂，可能改变人体的含铁量，使之处于严重缺铁状态。