dart off的音標為：[dɑ?t ?f]，基本翻譯為“猛沖；疾馳；投擲”，速記技巧為：dart是“疾馳”的意思，off是副詞，表示“離開”。

Dart off 的英文詞源是dart，意為“箭矢”，off則表示“離開”。因此，Dart off的意思是“迅速離開”。

變化形式：Dart的過去式是darted，過去分詞是darted，現在分詞是darting。

相關單詞：

1. Dartboard - 飛鏢盤，由飛鏢和靶子組成的投擲游戲設備。

2. Dartthrowing - 投擲飛鏢，一種運動或游戲方式。

3. Dartsmanship - 飛鏢技藝，指投擲飛鏢的技巧和能力。

4. Dart-throwing competition - 飛鏢比賽，一種體育或娛樂活動。

5. Dart-throwing game - 飛鏢游戲，一種電子或在線游戲。

6. Dart-throwing equipment - 飛鏢設備，包括飛鏢和靶子等。

7. Dart-throwing machine - 飛鏢投擲機，一種自動投擲飛鏢的設備。

8. Dart-throwing sport - 飛鏢運動，一種傳統的投擲游戲。

9. Dart-throwing practice - 飛鏢投擲練習，一種提高投擲技巧的方法。

10. Dart-throwing target - 飛鏢投擲目標，通常是一個靶子或一個模擬的靶子。

短語：

1. Dart off to

2. Dart off in

3. Dart off at a run

4. Dart off to do

5. Dart off to somewhere

6. Dart off quickly

7. Dart off in a hurry

例句：

1. He darted off to answer the phone.

2. She darted off at a run to catch the bus.

3. When the bell rang, she darted off to class.

4. They darted off to do their homework.

5. She darted off to the store to buy groceries.

6. He darted off quickly to catch the train.

7. They darted off in a hurry to avoid being late for work.

英文小作文：

Darting off is a habit that many people have, whether it"s to answer the phone, catch a bus, or run away from danger. It"s a way of being agile and quick, and it can be helpful in unexpected situations. However, it can also be dangerous if you"re not paying attention and end up running into things or getting lost. Therefore, it"s important to use caution when darting off, and always have a plan in mind before you act.