一只苍蝇出现了，它不停的在男人的秃顶上飞来飞去，时不时的还叮咬他一下。

Fly came up and kept buzzing about his bald pate, and stinging him from time to time.

youdao

飞来了一只苍蝇。

Here comes a fly.

youdao

一个很热的下午，老人坐在椅子上睡着了，飞来了一只苍蝇落在老人的鼻子尖儿上，猴子看见了苍蝇，把他从主人那儿赶走了。

One hot summer afternoon the old man was asleep in his chair, a fly came and sat on the end of his nose. The monkey saw the fly and chased it away from his owner's nose.

youdao