have only to的音標是[h?v b? tu]，基本意思是“必須”、“只得”、“只得”、“不得不”，速記技巧是have to do sth表示必須做某事。

have only to的英文詞源為：

1. 詞根：have

2. 詞源詞：have

3. 詞源變化形式：have可以作為動詞和名詞使用，其變化形式包括現在分詞、過去式、過去分詞、第三人稱單數等。

相關單詞：

1. have a good time：玩得開心，過得很愉快

2. have a rest：休息一下

3. have a look：看一看

4. have a try：試一試

5. have a meal：吃一頓飯

6. have a word with sb：和某人談一談

7. have a problem with sb：和某人發生問題

8. have a headache：頭疼

9. have a cough：咳嗽

10. have a fever：發燒

以上這些單詞都與have有密切關系，它們在不同的語境中表達了不同的含義和用法。例如，“have a good time”表示“過得愉快”，“have a rest”表示“休息一下”，而“have a look”則表示“看一看”。這些單詞的使用頻率非常高，是英語中非常常見的表達方式。

常用短語：

1. have to do

2. have only to go

3. have to go

4. have to be

5. have to be doing

6. have to do with

7. have to catch

雙語句子：

1. I have to go to work today. （今天我必須去上班。）

2. I only have to walk my dog for 15 minutes. （我只需要遛狗15分鐘。）

3. We have to be at the airport at 7am tomorrow. （我們明天早上7點必須到達機場。）

4. I have to catch a train at 9pm. （我必須在晚上9點趕上一趟火車。）

5. I have to do my homework before I watch TV. （我必須在看電視之前完成作業。）

6. I have to be at work by 6am tomorrow. （我明天早上6點必須到公司。）

7. We have to be at the party at 8pm. （我們必須在晚上8點到達聚會地點。）

英文小作文：

I enjoy spending my free time doing various activities, but one of my favorite things to do is going for a run in the morning. It"s a great way to start the day and clear my mind, and I only have to do it for 30 minutes before I start my day"s work. It"s a simple routine that I enjoy, and it helps me stay healthy and fit. I also find it relaxing and enjoyable, which is why I enjoy it so much. I hope you can find some time in your day to do something you enjoy, whether it"s a run, a workout, or just relaxing with friends and family.