"What we expect to see come out of the summit is a communiqu with an action plan, a specific timeline with very particular benchmarks that are measurable on how to secure and lockdown these vulnerable nuclear materials."

VOA: standard.2010.04.06

If I strike you in a vulnerable place with a stick that has a bronze butt on it, it could well kill you.

如果我用一根有铜质尾部的棍子,刺你的软肋的话,很可能就是一击必杀

耶鲁公开课 - 古希腊历史简介课程节选

If I strike you in a vulnerable place with a stick that has a bronze butt on it, it could well kill you.

如果我用一根有铜质尾部的棍子,刺你的软肋的话,很可能就是一击必杀

耶鲁公开课 - 古希腊历史简介课程节选