Flies, like all insects, breathe through many tiny openings called spiracles.

苍蝇，和所有昆虫一样，通过无数微小的气门来进行呼吸。

youdao

One hypothesis suggests that by closing tiny breathing-valves in their exoskeletons called spiracles, insects prevent evaporation.

有一种假说认为昆虫可以通过关闭外骨骼上微小的呼吸阀门(气孔)来防止蒸发。

youdao

One hypothesis suggests that by closing tiny breathing-valves in their exoskeletons called spiracles, insects prevent evaporation.

有一种假说认为昆虫可以通过关闭外骨骼上微小的呼吸阀门(气孔)来防止蒸发。

youdao