You look as merry as a cricket.

你看起来好开心啊！

I think a charming girl should be as sound as a bell, as merry as a cricket and happy-go-lucky every day.

我认为魅力女生应该每天身体健康，开心快乐，无忧无虑。

I have a dream that all the children in the world can be as sound as a bell, as merry as a cricket and as happy-go-lucky every day.

我梦想世界上所有的孩子都能每天身体健康，开心快乐，无忧无虑。