英语高手帮忙翻译下！别用机器翻译！！！！！

Whistle while you work
Just whistle while you work
Put on that grin and start right in
To whistle loud and long
Just hum a merry tune
Just do your best then take a rest
And sing yourself a song
When there's too much to do
Don't let it bother you
Forget your troubles
try to be just like a cheerful chick-a-dee
And whistle while you work
Come on, get smart
Tune up and start
To whistle while you work

英语高手进来翻译一下这句子。。。谢谢！！！千万别用机器翻！！ 高手帮忙翻译下~！！机器翻的请勿扰！谢谢 高手帮忙翻译下!机器翻的先谢谢了~~~~! 英语会的翻译下`别用机器.用人脑 翻译下句子，别用翻译机器 帮忙用机器翻下 帮忙翻译下!!!中文翻译成英语! 帮忙翻译下(中文翻译成英语) 帮忙翻译下,翻译成英语谢谢 求翻译（别用机器翻啊）