on the verge (of) idiom (also to the verge of)
C2 接近于…；濒于…
If you are on the verge of something or come to the verge of something, you are very close to experiencing it.
on the verge of collapse/success/tears/death/disaster/war 濒于崩溃／接近成功／差点流泪／濒临死亡／濒临灾难／处于战争的边缘
Her husband's violent and abusive behaviour drove her to the verge of despair. 她丈夫的暴力和虐待行为将她逼到了近乎绝望的境地。