这种本能是如此之完美，有一次我又把它们放回到村叶上，其中有一只由于不小心而跌倒在地了，可是我发现它，十分钟之后还是和别的雏鸟一起，还是原来的姿势。

So perfect is this instinct, that once, when I had laid them on the leaves again, and one accidentally fell on its side, it was found with the rest in exactly the same position ten minutes afterward.

youdao

这种本能是如此之完美，有一次我又把它们放回到村叶上，其中有一只由于不小心而跌倒在地了，可是我发现它，十分钟之后还是和别的雏鸟一起，还是原来的姿势。

So perfect is this instinct, that once, when I had laid them on the leaves again, and one accidentally fell on its side, it was found with the rest in exactly the same position ten minutes afterward.

youdao