insufficient

不充分的，不够重要的adj.

• His salary is insufficient to meet his needs.

  他的薪水不够应付需要。

• 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.

  许多人也没有正确地使用防晒霜——涂抹的量不够，几个小时后没有重新涂抹，并且在阳光下待的时间太长。

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

  专家们在评审中还发现，没有足够的证据来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。