Administration officials "cited clear evidence that the Syrian government had at different times used chemical weapons, including the nerve agent sarin, killing as many as 150 people and thus had crossed Obama's 'red line'.
政府官员引用证据证明叙利亚政府曾在不同时间使用化学武器，包括神经性毒剂萨林，导致150人死亡并跨越了奥巴马的“红线”。