by all means音標為["ba? ??l me?nz]，基本翻譯為“一定，務必；千方百計”。速記技巧為：可以縮寫為“BM”。

by all means的英文詞源為拉丁語，意為“用一切方法，盡一切手段”。其變化形式為“by means of”和“by no means”，前者意為“用某種手段”，后者意為“決不”。

相關單詞有：

1. means：n. 方法，手段；v. 達到。

2. method：n. 方法，方式。

3. technological：adj. 工藝的，技術的。

4. resourceful：adj. 機智的，善于應付的。

5. ingenious：adj. 心靈手巧的，有創造力的。

6. skilful：adj. 熟練的，技巧好的。

7. clever：adj. 聰明的，伶俐的。

8. artful：adj. 巧妙的，狡猾的。

9. cunning：adj. 狡猾的，詭計多端的。

10. dexterous：adj. 靈巧的，熟練的。

by all means在口語中常用來表示“一定，務必”，是一種非常正式且禮貌的表達方式。

常用短語：

1. by all means 一定要，務必

例句：By all means finish your homework before going out to play.

2. by means of 用...方法

例句：He learnt English by means of watching English movies.

3. by no means 決不

例句：By no means should we ignore the importance of protecting the environment.

4. in means 意味著

例句：The rain in April in Beijing in means that the wheat will be harvested early.

5. every means 采取一切辦法

例句：We must use every means to solve this problem.

6. mean to do sth 打算做某事

例句：I mean to get a job abroad next year.

7. mean with sth 用...方法

例句：He is always trying to find new meanings with his words.

英文小作文：

By all means, we should cherish our environment. We should try our best to protect our environment, because it is our home and we live in it. We should not only stop pollution, but also reduce waste and recycle resources. We can do this by using energy-saving appliances, reducing our carbon footprint and reducing single-use plastics. By doing so, we can make a contribution to a healthier planet and a better future for ourselves and future generations. Therefore, let us all do our part to protect our environment by all means.