How to describe the cicada's cry?
Cicada is not monotonous, just like the song of a bird. There is a cymbal-like instrument in the cavity behind cicada wings, so they can make sounds in turn and sing enthusiastically in different tones.
Not all cicadas can sing, only the male cicada can. The male cicada has a sounder in his abdomen, which can make a loud sound continuously. Although the female cicada also has a sounder in her abdomen, she doesn't make a sound.
The vocal organ of cicada is located in the abdominal muscle, like a big drum covered with a layer of tympanic membrane. The eardrum vibrates and makes a sound. Because the cover plate and eardrum are empty, it can play a role of * * *, so its sound is particularly loud.
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