Definition (数字)
To be unable to remember the number of times something has occurred.
不记得数目；记不清次数
I've lost count of how many times she's been late this month.
我已经记不清她这个月迟到多少次了。
I've lost count of the number of patients I've seen with spinal injuries from motorcycle accidents.
我已经记不清我看过多少因为摩托车事故而脊椎受伤的病人了。
There have been so many bottles washed up on the beach, I'm losing count.
海滩上冲上来太多瓶子了，我都数不清了。