downshift

downshift的音标是[daʊn ʃɪft]；基本翻译是降速、减档；速记技巧是利用谐音记忆法，可将downshift理解为“当心闪”，每次看到单词时就在脑海中闪现出其拼写，加强记忆。

Downshift是一个英语单词，意思是降低（汽车）档位。这个词的词源可以追溯到古英语，意为“向下移动”。

变化形式为suffixed form，即在其词干后加上一个后缀的形式。

相关单词有：shift（移动），displace（移开），reposition（重新定位），redundancy（冗余），disengage（分离），substitute（代替），displaceable（可移动的），dislocation（错位），undermine（削弱），relieve（缓解）。

这些单词在语义和用法上与downshift有密切的联系，都与移动、位置和削弱有关。它们在句子中可以表达不同的意思，例如shift可以表示改变位置或方向，displace可以表示移开或取代，relieve可以表示缓解或减轻压力等。这些单词在句子中的使用可以使语言表达更加丰富和多样化。

以上回答仅供参考，希望对您有所帮助。

常用短语：

1. downshift into second gear

2. downshift to lower speed

3. shift down

4. shift into lower gear

5. downshift to lower torque

6. downshift to save fuel

7. downshift to avoid stalling

例句：

1. When driving on a steep hill, I always downshift into second gear to avoid stalling.

2. When driving on a long downhill, I downshift to lower speed to save fuel.

3. After a hard effort, I need to shift down to lower torque to avoid over-exertion.

4. When driving on a narrow road, I always shift into lower gear to avoid getting stuck.

5. Downshifting is essential when driving on a bumpy road to avoid damage to the car.

6. I always downshift when driving in heavy traffic to maintain control of the car.

英文小作文：

Downshifting is an essential skill for driving on different roads and conditions. It helps maintain control of the car and avoid damage to it. When driving on a steep hill, downshifting into second gear helps avoid stalling and keep the car moving smoothly. On a long downhill, downshifting to lower speed saves fuel and reduces emissions. Downshifting also helps maintain control of the car when driving on a bumpy road or narrow road, avoiding over-exertion and getting stuck. In heavy traffic, downshifting helps maintain control and avoids getting stuck behind other cars. Downshifting is also essential when driving in city traffic, as it helps maintain a constant speed and avoids unnecessary acceleration and braking. I always keep my car in good condition and know how to use downshifting effectively to avoid accidents and damage to my car.