taper off

动词 taper off:

1. end weakly
   同义词：peter out, fizzle out, fizzle
2. become smaller or less active

1. The number of applicants for the course has been tapering off recently.
   申请上该课程的人近来已逐渐减少。
2. Financial aids generally taper off after the first year of college.
   助学金通常在大学一年级之后逐渐减少。