number基本解释

n,[数]数；（杂志等的）期；号码；数字；算术,同近

The crowd numbered more than a thousand..聚集的人群共计一千多人。

共计，达…之数英释vvto make a particular number when added together

number of,许多；数目；若干.短语

真题例句...A number of factors are driving down the global oil prices not just for now but in the foreseeable future