nutshell

nutshell
noun
  1. the hard woody covering around the kernel of a nut
    坚果壳
  2. (nut shell)any of a number of bivalve molluscs occurring chiefly in cool seas, in particular
    (生存于冷海水中的)双壳类软体动物,尤指
  3. a small oval-shelled bivalve (genus Nuculana, family Nuculanidae) a bivalve with a rectangular shell which is rounded at the front and angled behind (genus Nucula, family Nuculidae)
    小椭圆形双壳类软体动物(吻状蛤属,吻状蛤科) (前圆后尖的)矩形双壳类软体动物(胡桃蛤属,胡桃蛤科)
常用词组
in a nutshell
  1. in the fewest possible words
    简单地(说),概括地(说)
    she put the matter in a nutshell.
    她简单地介绍了一下事情的经过。
英语宝典
考试词汇表