你听过那句古老的谚语“小鸡未孵出，先别忙点数”吗？

Have you heard the old ___saying, "Don't count your chickens before they're hatched"?

正如俗话所说，“欢乐时光总觉短。”

As the ___saying goes, "Time flies when you are having fun."

我祖父经常引用“熟能生巧”这句格言。

My grandfather often quotes the ___saying "Practice makes perfect."