numerous similar cases

numerous and disorderly 纷乱; 纷乱 numerous similar cases 不知凡几; 不知凡几 numerous tasks remain to be undertaken 百端待举; 百端待举 ..

 one can't tell how many

... 百几个 more than a hundred 不知凡几 numerous similar cases; one can't tell how many 代数几何 algebraic geometry ...