您要查找的是不是：
- 终纹背核dorsal terminal nucleus; DTN
- 具有菱纹背的diamond-back
- 纽虫nemertean
- 环loop
- 裂纽虫schizonemertea
- 它们在视野中物象周围,产生有色环纹。And they produce colored fringes around objects in the field.
- 虫worm
- 底纹shading
- 针纽虫目Hoplonemertini
- 纹line
- 背板backboard
- 纽to turn
- 环比link relative ratio
- 圆环traffic circle
- 纹身tattoo
- 背的neural
- 中纽虫类Mesonemertini
- 环的annular
- 把这些单词背熟。Learn these words off by heart.
- 木虫carpenter worm
