We saw a finch light on (or upon ) a bough.
们看到树枝
停着(或 upon ) 一只麻雀。
词
词We saw a finch light on (or upon ) a bough.
们看到树枝
停着(或 upon ) 一只麻雀。
This behaviour is commonly observed among several species of finch.
这种行为常常可
在几种雀科鸣禽中看到。
声明:

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