Woody and Szechtman say " … there is evidence that serotonin may act as a satiety-like terminator signal."

Woody 和 Szechtman 认为，“有证据表明，血清素可能是满足感的终端信号。”

Some Republicans believe there is enough evidence for the U.S. to act more aggressively in Syria, either by arming the rebels or establishing a no-fly zone.

有的共和党人认为已有足够的证据令美国对叙利亚采取更强硬态度，或者向叛军提供武器，或者建立禁飞区。