but the snakes have a secret weapon. 不过蛇也有自己的秘密武器

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weapon snakes secret have the but a
  1. but the snakes are literally in the dark -
    而蛇则完全处于黑暗之中
  2. they can see nothing.
    它们看不见任何东西
  3. The strikes seem to be largely hit-and-miss,
    这种攻击更像是在碰运气
  4. but the snakes have a secret weapon.
    不过蛇也有自己的秘密武器
  5. They can actually sense each bat flying past.
    它们实际上能感觉到 每一只飞过的蝙蝠
  6. Receptors in the snake's head pick up the heat given off by the flying bats,
    位于头部的“热眼”能觉察到 飞行中的蝙蝠散发出的热量
  7. as this thermal image shows.
    正如这幅热影像所示

来自《行星地球 第一季 第四集 Planet Earth S01E04 洞穴》第 234 行

Walden21
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