主要人物
Main Characters

我 wǒ

I, a boy living in a village in western China

爷爷 yéye

grandfather

小白 Xiǎo Bái

Xiao Bai (white), a wild male goose

小黄 Xiǎo Huánɡ

Xiao Huang (yellow), a wild female goose

狗狗 Gǒugou

nickname of a boy

文中所有专有名词下面有下画线，比如：小白
（All the proper nouns in the text are underlined, such as in 小白）