shell/ʃel/

n C

1. (卵、果实以及动物等的)壳

• walnut shells 核桃壳

• the shell of a coconut 椰壳

• Oysters, snails and tortoises all have shells. 牡蛎、蜗牛和乌龟都有壳。

2. 炮弹

• a mortar shell 迫击炮弹

3. 骨架；框架

• The fire burnt the building into a shell. 大火把楼房烧得只剩下空框架。

词组come out of one's shell 不再羞怯(或缄默)

• She was no longer quiet and began to come out of her shell. 她不再沉默，变得活跃起来。

get(或retire，withdraw) into one's shell 变得缄默；不愿与别人接触

• Her rejection made him get back into his shell. 她的拒绝使他变得沉默不语。