I will now pause for a moment and let you think about what it would be like if human men, every time they had sex, had to produce something that weighed 50, 60, 70 pounds.
我且稍息，让在坐的想想： 如果人类的男性每次性交之前 都得先生产一块50、60、70磅 重的东西，会是什么情形？