four-star的音標是["f??stɑ?]，意思是四星級。為了更有效地記住這個單詞，可以采用以下速記技巧：

諧音記憶：可以將其諧音理解為“福特上”，幫助記住四星級酒店經常出現在福特汽車品牌旗下的場所。

詞根詞綴記憶：如果知道four是“四”的意思，star是“星星”的意思，那么就可以將其合成“四個星星”就是四星級。

場景記憶：想象一個人在四星級的酒店里度過了一個美好的夜晚，通過這樣的場景記憶也可以很好地記住這個單詞。

以上就是幾種常見的速記技巧，你可以根據自己的學習習慣和單詞特點選擇最適合你的方法來記憶。

Four-star這個詞的英文詞源是拉丁語，表示“四顆星”。它的變化形式主要有復數形式four-stars，過去式和過去分詞four-starred，現在分詞four-starring。

相關單詞：

star（星）：這個詞直接來源于four-star的詞根部分，表示天上的星星。

starred（有星的）：這個單詞表示“有星星的”，是star的過去分詞形式。

stardom（明星身份）：這個單詞表示“明星身份”，由star和dom兩個單詞組合而成。

starboard（船的右舷）：這個詞表示船的右舷，由star和board兩個單詞組合而成，與four-star的詞源相同。

starling（椋鳥）：這個詞表示椋鳥，與four-star沒有直接關系，但是都與星星有關聯，可能是因為這種鳥在夜間會發出亮光。

starve（餓死）：這個單詞表示“餓死”，與four-star也沒有直接關系，但是都與食物有關，可能是因為饑餓的感覺與四顆星的感覺相反。

總之，four-star這個詞的英文詞源變化形式和相關單詞都與星星、星、星狀物等有關，這些單詞在英語中有著豐富的含義和應用。

常用短語：

1. four-star hotel 四星級酒店

2. four-star restaurant 四星級餐廳

3. four-star rating 四星級評價

4. four-star quality 四星級品質

5. four-star team 四星級團隊

6. four-star performance 四星級表現

7. four-star support 四星級支持

例句：

1. We stayed at a four-star hotel and enjoyed the excellent service and facilities.

2. The restaurant served delicious food and was rated four stars by the local guidebook.

3. The company"s performance has been rated four stars by the market analysts.

4. The team is a true four-star performer, with excellent skills and teamwork.

5. The support provided by the government is a real four-star effort, with a strong focus on helping businesses grow.

6. The book is a four-star read, with engaging characters and a gripping plot.

7. The film was a real four-star performance, with outstanding acting and direction.

英文小作文：

Four-Star Experience

I recently had the opportunity to stay at a four-star hotel and I must say it was an amazing experience. From the luxurious room to the impeccable service, everything was top-notch. I especially enjoyed the delicious food served in the restaurant and the beautiful view from my room. The hotel also had a variety of facilities such as a fitness center, a swimming pool, and a business center that made it easy to stay active and productive during my stay. Overall, I would highly recommend a four-star hotel to anyone looking for a luxurious and comfortable stay. It was an unforgettable experience that I will never forget.