at length

at length的音标为[əˈtlɪŋ]，基本翻译为“最后；终于；详尽地；详细地”。

速记技巧：可以记成“长（length）地（at）详细地（detailed）”。这样联想到“长地详细”就是“at length”的意思。

at length 的英文词源是拉丁语，意思是“长久的，最终的”。其变化形式为“at length”和“in length”，前者表示“最后，终于”，后者表示“长度”。

相关单词：

1. length：长度，距离

2. lengthy：长久的，延长的

3. extend：伸展，延伸

4. lengthy process：漫长的过程

5. lengthy discussion：冗长的讨论

6. lengthy journey：长途旅行

7. outlast：比...更持久

8. duration：持续时间

9. time-consuming：耗时的

10. protracted：拖延的，持久的

这些单词都与“at length”这个词汇相关的概念有关，即表示一个过程或事件的最终阶段或持续时间。这些单词在英语中广泛使用，描述各种情况下的持久性和复杂性。

常用短语：

1. at length

2. in length

3. lengthen the process

4. of equal length

5. in short length

6. long in the tooth

7. of short length

例句：

1. After a long wait, the movie finally began at length.

2. The journey took days and days, in length.

3. The problem has been lengthening the process for weeks.

4. All the cars on the road have the same length.

5. In short, we must take action to protect our environment.

6. The old car is long in the tooth and needs to be replaced.

7. The book is of short length and easy to read.

英文小作文：

Our planet is facing a lot of environmental problems, such as pollution and deforestation. These problems are making our environment more and more fragile, and we need to take action to protect it. One way to do this is to reduce our carbon footprint by using public transportation or walking or biking instead of driving a car. Another way is to plant more trees to absorb carbon dioxide and provide oxygen for us and other animals. At length, we should also try to reduce our waste by recycling and reusing things instead of throwing them away. By doing these things, we can help our planet to be healthier and more sustainable for future generations.