题目内容：

几道英语单词拼写题目
Happiness is a kind of good f
With the help of the f ,a camera can take photos at night.
The bird f killed a lot of birds.

优质解答

feeling 快乐是一种好的感觉.
flash 相机可以依靠闪光灯在夜间拍照.
fancier 鸟类爱好者（收藏者）杀了很多鸟.