coolth的音標為[?k?lst]，基本翻譯為“酷”。速記技巧為：cool=酷，th=名詞后綴。

Coolth這個詞似乎不是一個標準的英語單詞，可能是拼寫錯誤或者是一個合成詞。不過，我可以為你提供一些與cool相關的詞源、變化形式以及相關單詞的信息，希望對你有所幫助。

詞源：cool這個詞源自于古英語中的詞根“cuol”，意為“涼爽的”或“寒冷的”。后來隨著時間的推移，這個詞根逐漸演變成了“cool”。

變化形式：cool作為形容詞時，可以有比較級和最高級形式，如cooler、coolest，表示“較涼爽的”和“最涼爽的”。作為動詞時，cool還可以表示“使冷卻”或“使冷靜”。

相關單詞：

1. cool down：降溫，冷靜下來

2. cool off：冷卻，消氣

3. ice-cold：冰冷的，極好的

4. cool breeze：涼爽的微風

5. cool sensation：涼爽的感覺

6. cool-headed：冷靜的，頭腦冷靜的

7. cool-looking：看起來很酷的

8. cool-toned：色調偏冷的

9. cool-headedly：冷靜地

10. cool-hearted：心腸冷漠的，冷靜的

以上這些單詞都與cool這個詞有關，表達了涼爽、冷靜、冰冷等含義。希望這些信息對你有所幫助！

常用短語：

1. cool down

例句：After a hard workout, I usually cool down with a walk in the park.

2. keep cool

例句：In stressful situations, it"s important to keep cool and stay calm.

3. be on the cool side

例句：I always try to avoid situations where I"m on the cool side because it"s uncomfortable.

4. take the high road

例句：When dealing with conflicts, it"s always best to take the high road and resolve things peacefully.

5. hit the coolers

例句：After a long day at work, I like to hit the coolers for some cold drinks and snacks.

6. stay cool

例句：In this hot weather, it"s important to stay cool and hydrated.

7. keep one"s cool

例句：The politician kept his cool even under intense pressure during the debate.

英文小作文：

Summer heat can be unbearable, but there are ways to stay cool. First, it"s important to drink plenty of water to stay hydrated. Second, try to avoid the heat of the sun as much as possible by staying indoors or seeking shade. Third, if you must be out in the heat, wear light clothing and use a fan or air conditioning to keep yourself comfortable. Finally, try to keep your stress levels low by taking deep breaths, relaxing, and seeking out distractions like listening to music or reading a book. By following these tips, you can enjoy the summer heat without getting too overwhelmed by it.