Basic explanation:

A metaphor for a person with a certain characteristic (mostly contempt): a bookworm. Networm.

Group words: bugs, pests, beetles, insects,

Extended data:

1，bug

Insects and small animals that like insects. Hong Shen's "Qinglongchi" Act I: "Zhuang Bingwen:' Just now, Ma Fu said that only his tree can't have bugs; Alas, there are no bugs in our trees! "Worms don't eat our cherries, they eat our meat there." "

2. Pests

Harmful insects. Such as flies, mosquitoes, locusts and cotton aphids. Shen Congwen's autobiography, I still don't put down that big book in many classes: "The most interesting thing there is that you can identify all kinds of seedlings, know all kinds of pests, learn to catch grasshoppers and distinguish them."

3. Beetles

Coleoptera insects. There is a hard shell outside the worm, hence the name. Mao Dun's "Algae Walk" I: "There are seven or eight low houses scattered underground, like beetles." Feng Zhi's Miscellaneous Notes on Potato Beetles and Oranges in Eastern Europe: "These beetles didn't grow on the ground, but fell from the sky by American planes."

4. Insects

Insects in general. Guo Moruo's Journey to the Soviet Union on June 13th: "Probably because there are more insects and more gnats, and there are fewer electric lights in the park."