Escalating fears have driven US President Barack Obama to declare repeatedly that any Syrian use or transfer of chemical weapons would cross a “red line,” for which President Bashar al-Assad’s regime would be “held accountable.” But the practical implications of this warning remain vague.
逐步升级的担忧让美国总统奥巴马再三强调，叙利亚使用或转运化学武器的任何行为都意味着越过“红线”，总统巴沙尔·阿萨德政权将因此“被问责”。但这一警告到底有什么作用还不清楚。