These new attacks came after a relative period of calm, a grim reminder that the country's celebrated security gains still remain fragile.

爆炸事件让这个国家脆弱的安全局势在经历了相对平静之后又遭到了剧烈刺激。

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The earthquake that struck the Abruzzo region at 3.32am on April 6th was another grim reminder of how vulnerable Italy is to natural disasters.

2009年4月6日凌晨3点32分在意大利阿布鲁佐地区发生的这场地震再次为意大利敲响了警钟——在自然灾害面前意大利显得如此脆弱不堪。

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Today, the Cagsawa Ruins is a tourist site and a grim reminder of Mount Mayon's danger.

WSJ: Philippines Volcano Spews Ash, Kills 5

This traumatic event permeates the narrative--a grim reminder that great enterprises may demand great sacrifices.

CNN: Giving Peace a Chance

Amid the good wishes and emotions of Clinton's farewell, Friday's bombing in Turkey was a grim reminder of the continuing threats and challenges to U.S. diplomatic efforts.

CNN: Clinton's farewell marred by embassy bombing