沙鰕虎鱼在海螺壳下筑巢。雄性沙鰕虎鱼不仅要护巢，还要让它空无一物。
Sand gobies nest under sea shells , and the males not only defend the nests , but also hollow them out .
先生不要见怪，一康塞尔回答，住在这里跟寄生蟹住在海螺壳中一样舒服。
With all due respect to master , Conseil replied , as comfortable as a hermit crab inside the shell of a whelk .
海螺壳