There are about 750,000 species of named insects and 85 % of these are holometabolous.

已定名的昆虫约有750,000种,其中85%的昆虫都是完全变态的.

辞典例句

Metamorphosis of an insect may be ametabolous hemimetabolous, or holometabolous. Neuroendocrine and endocrine secretions control metamorphosis.

昆虫的变态可以是无变态型、渐变态型, 不完全变态型和完全变态型. 神经分泌和内分泌控制变态行为.

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