to say or do no more about sth :
I don't entirely agree, but I'll let it go at that.
I thought she was hinting at something, but I let it go.
to say or do no more about sth :
I don't entirely agree, but I'll let it go at that.
I thought she was hinting at something, but I let it go.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005