1. John seems to be in high cotton. He may well become a big shot.
约翰走红起来了，他有可能成为大人物。
be in high cotton：走红，轰动
a big shot：大人物

2. Fischer made a sensation when he achieved the grandmaster title at age 15, in 1958.
1958年，年仅15岁的费雪获得特级大师头衔后，风光一时。
Make a sensation：轰动一时
Grandmaster：大师

3. Many people like him got a flying start but soon disappeared.
很多像他这样的人只是有个开门红，然后便销声匿迹了。
a flying start：快速的开端，开门红