He's not the sort of man you can afford to reckon without.

他不是那种你可以置之不理的人。

youdao

You'd better reckon without me, as I am not sure whether I shall be able to be present.

你最好别把我算进去，因为我能否出席还不一定。

《新英汉大辞典》

Twelve years without a new record would, the sceptics reckon, be rather a large lull in what is supposed to be a rising trend.

全球变暖怀疑论者认为，12年不出现新纪录，在本该是上升趋势的过程中，间歇期显得也太长了。

youdao

That is to reckon without Mr Lafontaine's gifts as string-puller and master of ceremonies.

ECONOMIST: Germany��s Social Democrats

But that is to reckon without the shift towards Internet-based computing, and the growing success of the Java programming language, which allows applications to run on a variety of platforms.

ECONOMIST: Apple

That would be to reckon without the fine print.

ECONOMIST: Britain's public finances