n. 苍蝇（fly 的复数）；舞台上空，吊景区；裤子前面的开口
v. 飞行；时间飞逝；乘飞机；飘动（fly 的第三人称单数）
1.Quietly she flies far and far away.
她默默地飞走了，飞得很远很远。
2.Ants and flies are insects.
蚂蚁和苍蝇都是昆虫。
3.Your flies are undone!
你的裤子前裆开着呢！
4.Cathay Pacific flies daily nonstop to Hong Kong.
国泰航空的航班每天直飞香港。
5.The flies were a terrible torment.
苍蝇一度肆虐。
6.The villages are no more than a mile apart as the crow flies.
这些村庄直线距离相隔不超过一英里。