old egg

基本解释

Ceartainly is a worst old bad egg.
一定是最坏的大坏蛋。
A fresh egg will sink and an old egg will float .
新鲜鸡蛋会沉下去而不新鲜的会浮在上面。
Several 230-million-year-old teeth and egg capsules uncovered at a fossil site in southwestern Kyrgyzstan suggest hundreds of young sharks once congregated in a shallow lake a new study says.
在吉尔吉斯斯坦的西南部，科学家在一处化石较集中的遗址内挖掘出了2.3亿年前的鲨鱼牙齿与卵囊，这一新的发现表明若干年以前，曾是浅水湖的这片区域生存着数百条小鲨鱼。

Young problem solvers make fuel wood-alternative from bio-waste: Jon Kubricki and Bridget Zarych , both 16-year-old students at Pinelands Eco Regional High School in Little Egg Harbor, New Jersey , are winning team-members of the Siemens We Can Change the World Challenge.
WHITEHOUSE: The White House
Presentation of a turkey to the president is a 65 year old ritual, courtesy of the National Turkey Federation and the American Egg Board.
FORBES: Regulation in the Obama Administration -- However You Slice, It's A Turkey
But, on Friday, the 48-year-old father of two, who grew up making deliveries as the son of egg distributors, will become the CEO of Warner Bros.
NPR: From Eggs To Film: A Japanese-American Studio Head