Flies are insects of the order Diptera, the name being derived from the Greek δι- di- "two", and πτερόν pteron "wing".

2025年3月13日 · fly, (order Diptera), any of a large number of insects characterized by the use of only one pair of wings for flight and the reduction of the second pair of wings to knobs (called halteres) used for balance. The term fly is commonly used for almost any small flying insect.

Flies are more than just a nuisance. These buzzing insects also play important roles in nature, including pollinating plants, breaking down organic material, and serving as food for other bugs and animals. Find more fun fly facts below and then learn how to help keep them away.

The types of flies the average individuals crosses paths with on a daily basis, from your basic house fly to mosquitoes and gnats, are defined by having two wings. In fact, it’s the defining feature of the extra large order Diptera.

1.fly的基本意思是“飞”“飞行”,指鸟、昆虫或飞行器在空中飞翔或航行,引申可表示“乘飞机飞越〔旅行〕”“驾驶〔操作〕飞行器”“用飞行器运送(货物或乘客)”。

Flies are small flying insects belonging to the order Diptera distinguished by a mobile head, two large compound eyes, a single pair of flying-wings, and an appendage-like structure used for sucking. They exhibit excellent species diversity and are abundant almost in all parts of the world.

fly翻译：旅行, （鸟、昆虫或飞机）飞，飞行, （乘飞机）飞行，航行;乘飞机去;乘飞机穿过, 搭乘（某公司航班）, 空运（乘客或货物）, 驾驶（飞机）, 快速移动, 快速移动;疾行, 舞动…。

When a bird, insect, or aircraft flies, it moves through the air. The poor bird couldn't fly because it had a broken wing. 這隻可憐的鳥飛不起來了，因為它的翅膀斷了。 As soon as it saw us, the bird flew away/off. 鳥一看到我們就飛走了。 We flew to Paris. 我們乘飛機去巴黎。 We fly from/out from/out of La Guardia, but fly back (in)to JKF. 我們從拉瓜迪亞機場起飛，但返航時在約翰.F.甘迺 …

2024年8月7日 · One of the worst pests you can be stuck with is a fly. These annoying critters will circle around your head, land on your food or in your drink, and drive you insane with their buzzing. In fact, flies are practically neck and neck with cockroaches for the world’s most hated insect pest. But flies actually play some very important roles in nature.

A fly. A fly (plural: flies) is an insect of the order Diptera. [1] The Diptera is a large order of advanced flying insects. Their most obvious difference from other insects is in their flight. A normal fly has two flight wings on its thorax and a pair of halteres.