高压洗车自动水管:the number of diagonals that can be draw in a regular polygon with twenty sides(icosagon) is
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多边形对角线条数公式:n边形的对角线数为n(n-3)/2
所以20边形对角线170条
a number of 和the number of 的区别
a number of 和the number of有何区别?
a number of 和the number of不同
the largest number of 作主语
英汉互译 the number of
The lake is ______polluted so the number of the fish____.
用 a number of / the number of /dream of 造几个句子
翻译“a packing note quoting the number of the order”
翻译“a packing note quoting the number of the order”
the latter formulates the cumulative number of faults detected