不下于[bù xià yú ]
词典as many as：和…一样多；不下于。
词典no less than：不少于，多达；不下于。
词典不下于
词典as good as：无异；几乎，实际上；不亚于；不啻。
不下于[bù xià yú]
（不少于） as many as; no less than:
例：不下于50万人
no less than half a million people;
展出的新产品不下于300种。
There are as many as 300 new products on show.