the number of,a small number of,a number of.
问题描述:
the number of,a small number of,a number of.
答
e number of . ... 的数目a number of 若干,许多a small number of少量的a great/large number of各种各样的;大量的the number of +可数名词+单数动词a (large,small) number of +可数名词+复数动词...