flag down 的音標是["fl?gd∧n]，基本翻譯是“攔車”，速記技巧可以是“fl”可以聯想到“旗幟”和“攔路”，“gap”可以聯想到“間隔”和“車距”，組合記憶更高效。

Flag down這個詞的詞源可以追溯到古英語中的“flag”這個詞，意為“旗幟”。這個詞又引申為“攔車”的意思，因此“flag down”就是“攔車”的意思。

變化形式：flag down是動詞形式，其過去式和過去分詞都是flagged，現在分詞是flagging。

相關單詞：

1. flag (n.) - 旗幟

2. flare (v.) - 閃耀，突然變亮

3. flaunt (v.) - 炫耀，夸耀

4. flagrant (adj.) - 明顯的，公然的

5. flagstone (n.) - 石鋪人行道

6. flagellant (n.) - 鞭打者，拷打者

7. flagellum (n.) - 鞭子，笞棒

8. flagging (n.) - 信號燈，指示燈

9. flagship (n.) - 旗艦，領先者

10. flagitious (adj.) - 淫亂的，邪惡的

常用短語：

1. flag down 停下

2. flag down a taxi 攔出租車

3. flag down a plane 降落

4. flag down a train 停車

5. flag down a speeding car 攔住一輛超速行駛的汽車

6. flag down one"s attention 引起注意

7. flag down a customer 招攬顧客

雙語例句：

1. Please flag down the taxi before it leaves the rank. (英語)

2. The plane has landed and we can now flag down the stewardess for assistance. (雙語)

3. The train was speeding and I had to use all my strength to flag it down. (雙語)

4. I managed to flag down the speeding car and managed to explain the situation to the driver. (雙語)

5. The best way to flag down a customer is to offer them a great service. (雙語)

6. I was trying to attract attention with my hand, but it was no use, so I had to flag down a passer-by for help. (雙語)

7. The driver of the car was too busy to notice me, so I had to flag down a policeman for assistance. (英語)

英文小作文：

Flag Down: A Moment of Courage and Kindness

One day, I was walking along the street when I saw a stranger in distress. He was struggling to pull a heavy suitcase up a steep hill and he needed help. I immediately stepped forward and helped him carry it for him, which was a moment of courage and kindness for me. If I hadn"t flagged down, he might have given up and continued his journey alone, which would have been a sad sight. However, by flagging down, I was able to help him and make his journey a little bit easier. This experience taught me that we should always be ready to help others when they need it, even if it"s just a small gesture like flagging down. It"s these moments of courage and kindness that make life more meaningful and fulfilling.