六级The expert review also found insufficient evidence to recommend any drugs or dietary supplements that could prevent or slow cognitive decline.

专家审查还发现，没有足够的证据推荐任何可以预防或减缓认知能力下降的药物或膳食补充剂。

2016年6月六级真题（第二套）听力 Section C

六级Some parents who withdraw their children from the schools in favor of home schooling have an inadequate educational background and insufficient formal training to provide a satisfactory education for their children.

有些家长为了家庭教育而让孩子退学，他们的教育背景和正规培训不足，无法为孩子提供满意的教育。

2013年12月听力原文

六级Perhaps worse, the detrimental effects of an unhealthy diet and insufficient exercise are not limited to your body.

也许更糟糕的是，不健康饮食和运动不足的有害影响并不局限于你的身体。

2019年12月六级真题（第一套）阅读 Section A

六级Insufficient demand.

需求不足。

2016年6月阅读原文

六级The inconvenient fact about most books, to which Google has arguably paid insufficient attention, is that they are protected by copyright.

大多数TXA0书籍的一个不方便的事实是它们受到XA0COPYRIGHT的保护，而谷歌对此关注不够。

2011年12月阅读原文

四级Many people also don’t use sunscreen properly—applying insufficient amounts, failing to reapply after a couple of hours and staying in the sun too long.

许多人也没有正确使用防晒霜——涂抹量不足，几个小时后没有重新涂抹，在阳光下呆得太久。

2015年6月大学英语四级考试真题（第1套)