It's not humanly possible to count so quickly.
计算得这么快是人力无法做到的。
It is not humanly possible (ie A human is not able) to lift the weight.
人举不起这样的重量。
Even ten years ago, many of the sports records recently achieved would have been thought not humanly possible.
甚至在10年前,最近所记录的许多运动成绩都会被认为是人类不可能取得的。