soft-pedal
verb [ I or T ] uk/ˌsɒftˈped.əl/ us/ˌsɑːftˈped.əl/ -ll- or -l-
（对…）采取低调态度;降低（…的）重要性;淡化
to make something seem less important or less bad than it really is
This is a sensitive issue - I think we'd better soft-pedal it for the moment. 这是个相当敏感的问题——我认为目前我们最好低调处理。