Simone
区别是：a lack of指的是缺少一个东西。the lack of指的是总体上的缺少。例句辨析：a lack of1、I was hampered by a lack of information. 我受到桥坦猜了信息不足的牵累。2、A lack of prudence may lead to financial problems. 不够谨慎可能会导致财政上出现问题。3、The downside of this approach is a lack of clear leadership.这个办法的缺点是信清没有明确敏型的领导。the lack of1、There have been four hundred escapes this year, showing up the lack of security.今年已发生400起越狱事件了，这充分显示了安全措施的不到位。2、One of the fundamental bars to communication is the lack of a universally spoken, common language.交流的一个基本障碍就是缺少一种大家都说的通用语。3、I was disappointed to see the lack of coverage afforded to this event. 令我失望的是这一事件并未得到什么报道。
