（3）落井下石
落井下石 （luo jing xia shi）：比喻乘人危難的時候，加以打擊或陷害。
To Hit A Person When He Is Down

【瘋狂注釋】
Literally, this Chinese idiom means to drop stones on someone who has fallen into a well. It is used to describe an act that is unfair and unkind.

【瘋狂實戰】
A: You know I just lost my job yesterday, my girlfriend is breaking up with me and I have to find a new place to live. I am having the worst week of my life!
（你知道嗎？我昨天丟了工作，現在女朋友又和我分手，我不得不另外找地方住。這是我一生中最倒霉的一周。）
B: I know, and I kind of hate to bring this up now, but I really need that one hundred dollars you borrowed from me last month.
（你知道其實我打心眼里不想在這時候提起這事，但是我現在真的很需要你上個月從我這里借的那一百美金。）
A: Wow, you really know how to hit a person when he is down.
（喔！你真是會落井下石啊！）

（4）捷足先登
捷足先登 （jie zu xian deng）：行動迅速的人先得到所求的東西，或先達到目的。
The Swift-Footed Arrive First

【瘋狂注釋】
This Chinese idiom is used commonly to describe how the race is won by the swiftest.

【瘋狂實戰】
A: I heard you had great seats for the Three Tenors concert in Beijing.
（我聽說你買到了世界三大男高音北京演唱會的好票。）
B: That’s true. I bought them as soon as I heard the concert announcement. The swift footed arrive first you know.
（是的。我一聽到演唱會的消息就去買票了。這就叫做捷足先登。）
A: You’re a lucky dog! Even if I was the most swift-footed, I didn’t have enough money to go! I guess the swift-footed and the richest get the best tickets!
（你可真幸運！盡管我比誰都先到，但是我沒有那么多錢買票。我看不但要腳最快還要票子最多才能拿到最好的票。）

（5）如魚得水
如魚得水 （ru yu de shui）：比喻得到跟自己志同道合的人或適合于自己發展的環境。
Feel like A Fish In Water

【瘋狂注釋】
This Chinese idiom is used figuratively to describe one who is thriving in the company of congenial friends or conducive environment.

【瘋狂實戰】
A: You don’t seem to be having any trouble adjusting to life in Beijing.
（你好象很容易適應北京的生活。）
B: I’ve wanted to study at Beijing University my whole life. I also love the culture and the weather in Beijing. I feel just like a fish in water.
（去北京大學學習是我一生的夢想。我還喜歡北京的文化氣氛和天氣。我在北京簡直就是如魚得水。）
A: But as long as you are in Beijing, you may be more like a fish in ice!
（只要你在北京呆久了，你就不是如魚得水，而是如魚得“冰”了！）