In addition to being tragic, the events of 11 September 2001 remind us of the fragility of the international system in the face of the threat to international peace and security posed by international terrorism.
2001年9月11日的事件除了非常悲惨以外，还提醒我们国际制度面对国际恐怖主义对国际和平与安全的威胁的脆弱性。