A vampire bat comes back to his fellow vampires with a bloody mouth.

一只吸血蝙蝠带著满嘴的血回到牠的吸血同伴身边。

If it works, doctors might have found an unlikely friend–the vampire bat.

如果有效的话，医生们也许多一位意想不到的朋友——吸血蝙蝠。

The secret to how this Goliath takes off can be seen in a creature 1,000 times smaller...the vampire bat.

这头歌利亚巨人起飞的奥秘可以在比它小一千倍的生物身上找到，即吸血蝙蝠。