it says a lot for someone/something idiom
充分说明，很能说明
used to show how much of a particular quality someone or something has
It says a lot for her determination that she practises her cello so often. 她如此频繁地练习大提琴，这很能说明她的决心。
江苏热线英汉汉英双解词典包含207361条英汉翻译词条，涵盖了常用英语单词及词组短语的翻译及用法，是英语学习的必备工具。