In men, levels of the protein were the same for both.

男性的这一蛋白水平则没有变化。

Not literally. But as far back as the 17th century, scientists observed a 33 day fluctuation in men's hormone levels.

不是字面意义上的 但早在十七世纪 科学家就发现男性荷尔蒙水平有个33天的波动周期。

She stood against the wall, and the two men levelled their pistols for her count.

她靠墙站着， 两个男人举起手枪为她计数。