A CERTAIN rich man bought in the market a Goose and a Swan. He fed the one for his table and kept the other for the sake of its song. —
一个富有的人在市场上买了一只鹅和一只天鹅。他把一只养来食用，而另一只则为了听它的歌声而养着。 —

When the time came for killing the Goose, the cook went to get him at night, when it was dark, and he was not able to distinguish one bird from the other. —
当杀鹅的时候，厨师在夜晚的时候去拿它，漆黑的夜晚他无法区分出两只鸟中的哪一只。 —

By mistake he caught the Swan instead of the Goose. The Swan, threatened with death, burst forth into song and thus made himself known by his voice, and preserved his life by his melody.
他错误地抓住了天鹅而不是鹅。天鹅受到死亡的威胁，突然发出歌声，用它的声音让自己被认出，并通过它的旋律保住了自己的生命。