英语语法分析

I listened carefully to do the footsteps, chickadee.

我侧着耳朵听，蹑着脚步行。

Any of various other black-crowned birds, such as the chickadee.

黑冠鸟，山雀一种其他黑冠鸟，如山雀。

Any of various other black-crowned birds, such as the chickadee.

黑冠鸟，山雀：一种其他黑冠鸟，如山雀。