buy back的音標是[b?"b?k]，基本翻譯是“回購；買回；收買人心”，速記技巧是：buy+back（回）+東西（東西可以替換為具體事物）。

buy back這個詞的詞源可以追溯到古英語中的“buy”（購買）和“back”（回）。這個詞最初的意思是“買回”，指的是企業或個人購買自己曾經出售的資產或股份，以實現資產或股權的回收。

變化形式：

1. 比較級：bought back

2. 最高級：most bought back

相關單詞：

1. buy in：這個詞指的是購買原材料或股份，以獲得更多的控制權或利潤。

2. buyout：這個詞指的是企業或個人購買其他公司的全部股份或資產，以實現收購。

3. recapitalize：這個詞指的是通過增資或出售部分資產等方式，重新調整公司的資本結構。

4. reacquire：這個詞指的是重新獲得失去的資產或權利。

5. repurchase：這個詞指的是企業或個人再次購買自己曾經出售的資產或股份。

6. purchase：這個詞是最常用的與“buy”相關的詞，指的是購買物品或服務的行為。

7. resale：這個詞指的是再次出售已經購買或獲得的物品。

8. second-hand：這個詞指的是二手的，通常指已經使用過的物品。

9. buy-in：這個詞在一些特定的語境中表示參與某個游戲或活動時，為了表示誠意而進行的購買行為。

10. buy-out offer：這個詞指的是收購要約，通常是指收購公司向目標公司股東發出的收購要約，以實現收購目標公司的全部股份或資產。

常用短語：

1. buy back sth. 買回某物

例句：The company bought back its shares from the market.

2. buy back a promise 收回諾言

例句：He tried to buy back a promise he had made to his wife.

3. buy back control 收回控制權

例句：The government has been trying to buy back control of the company.

4. buy back trust 重建信任

例句：The company"s actions have bought back some trust from its customers.

5. buy back a company 收購公司

例句：The company was bought back by its original founder after being taken over by a competitor.

6. buy back time 挽回時間

例句：The team"s quick thinking bought back time for the rescue operation.

7. buy back morale 鼓舞士氣

例句：The manager"s speech bought back morale in the team.

英文小作文：

I am considering buying a new car, but I am not sure if it is a good idea to spend so much money on a car that I will only use occasionally. On the one hand, I need a reliable and safe vehicle to get around town, but on the other hand, I am not sure if I can justify the cost of a new car when I already have a perfectly good car that is still in good condition.

However, if I were to buy a used car, I would not be able to enjoy all the latest features and technology that are available in new cars, which would be a real shame. On the other hand, if I were to buy a new car, I would be able to show off my new purchase and feel proud of my investment.

In conclusion, I am not sure what to do, but I am considering consulting with my friends and family to see if they have any advice or suggestions that could help me make a decision. Ultimately, I need to weigh up the pros and cons of both options and make a decision that is best for me and my family.