她在木棍上刻了几个小凹痕来记录天数。

She made small ___notches on the stick to count the days.

她的成绩比上次提高了几个档次。

Her grades went up a couple of ___notches compared to last time.

这位歌手今年已经连续三次在排行榜上获得第一名。

The singer has ___notched three number-one hits on the charts this year.