但是对于一些死难者家属来说，失去亲人是永远的伤痛："Some of the victims's families will never stop mourning their loved ones." 对于我们来说，最好的悼念方式让世界更安全："One way to mourn victims of terrorist attacks is to try ourselves to make this world a safer place." 我们今天学的词是mourn...