她轻描淡写地说只是有点累，实际上已经连续工作三天没休息了。

She ___understated it by saying she was just a little tired, when in fact she hadn't rested for three straight days of work.

他轻描淡写地说只是“帮了点小忙”，其实整个项目都是他主导的。

He ___understated his role by calling it 'a little help', though he actually led the whole project.