麻烦翻译下面这首童谣,请注意用语,要有诗意。
Hush,little baby,don't say a word.
Papa's going to buy you a mockingbird.
If that mockingbird won't sing.
Papa's going to buy you a diamond ring.
If that diamond ring turns to brass.
Papa's going to buy you a looking-grass.
If that looking-grass gets broke.
Papa's going to buy you a billy-goat.
If that billy-goat runs away.
Papa's going to buy you another today.