a field day

基本解释

Carson had been having a field day with the speech in his monologues.
卡森已经忙了一整天构思在他的独脚戏中的演讲辞。
It's not clear what to make of this report, or the video of the sonar scan that shows the object, but Swedish tabloids and Internet UFO buffs have had a field day.
目前尚不清楚怎样的来书写或制作用来解释这个物体的报告或声纳视频，但瑞典的小报和互联网上的UFO爱好者已经对此感到非常高兴。
Four years ago, a joke by Murray at a press conference – when he said he would be supporting "anyone but England" at the World Cup – turned sour, with the tabloid press having a field day.
四年前，穆雷在一次新闻发布会上的玩笑话——他说自己在世界杯“除了英格兰谁都支持”——变味了，小报对此进行了大篇幅的报道。

Notice this would be harvard would have had a field day with this melody if he-- Cole Porter--had not done one thing.
注意,这个旋律就足够哈佛忙活一阵了,如果科尔·波特没有做一件事的话
耶鲁公开课 - 聆听音乐课程节选
Now during all of this-- problems for the personality theory, problems for the body view--during all of this, the soul theorist is having a field day.
在这一切之中-,人格理论出现麻烦，身体理论也不免问题丛生，这时灵魂理论者就要窃笑了。
耶鲁公开课 - 死亡课程节选
We live in a gravitational field and that it affects our day to day life, and if you have hip pain or a hip that's diseased in some way, and you can't stand up against that gravitational field in the same way, that severely limits what you can do in the world.
我们生活在一个重力场中,这个场影响着我们的日常生活,如果你的髋关节疼痛,或者有其他髋关节疾病的话,就不能像平常一样,站在这个重力场中了,这严重限制了人的活动能力
耶鲁公开课 - 生物医学工程探索课程节选

In short, 2012 will be a field day for those new behavior model quant funds.
FORBES: What Investors Are Thinking About 2012