extraplanetary的音標為[?ekstr??ple?n?t?] ，基本翻譯為“行星外的”，速記技巧為：行星外的（extra）planetary（planet星球）。

Extraplanetary這個詞來源于希臘語的前綴“ex-”和“planetes”，意思是“在行星之外的”。它的變化形式包括復數形式“extraplanets”和過去式和過去分詞形式“extraplanetary”。

相關單詞：

1. Extraterrestrial：指存在于地球以外的生命或物體，與地球以外的星球有關。

2. Extrapolation：指根據已知的數據或信息推斷未知的未來情況，與extraplanetary的含義相似。

3. Extrapolitical：指超出了政治范疇或范圍，與extraplanetary的抽象含義相似。

4. Extrapollation：指在已知數據的基礎上，進一步推算出更精確的結果，與extraplanetary的含義有相似之處。

5. Extraterritorial：指領土范圍以外的，與extraplanetary的含義相近。

6. Extraterestrial：指存在于地球之外的外星人或生物。

7. Extrapoliticality：指超出了政治原則或規范的性質，與extraplanetary的抽象含義相似。

8. Extrapolar：指在極地范圍以外的，與extraplanetary的含義相近。

9. Extraterrestrials：指存在于地球以外的星球上的生命或物體，是一個集合名詞。

10. Extraterrestrialism：指對地球以外生命存在的信仰或觀點，與extraplanetary的含義有相似之處。

Extraplanetary這個詞在科學和科幻領域中經常使用，它表示存在于行星之外的天體或物體，具有廣闊的想象空間。

常用短語：

1. beyond the reach of Earth

2. extraterrestrial life

3. explore extraterrestrial environments

4. extraterrestrial resources

5. extraterrestrial exploration

6. extraterrestrial intelligence

7. extraterrestrial lifeforms

例句：

1. We are looking for extraterrestrial life beyond the stars.

2. The discovery of extraterrestrial resources could revolutionize our economy.

3. Extraterrestrial exploration is a crucial task for future generations.

4. The question of extraterrestrial intelligence remains unanswered.

5. It is possible that extraterrestrial lifeforms exist in other galaxies.

6. The search for extraterrestrial life is a fundamental quest for human beings.

英文小作文：

Extraterrestrial Life: A Mystery to Solve

Extraterrestrial life is a topic that fascinates us all, and it is no wonder why. After all, we are all curious about what lies beyond our planet, and the possibility of life existing elsewhere in the universe is a tantalizing thought.

Whether it is the discovery of extraterrestrial lifeforms, resources, or simply the exploration of extraterrestrial environments, the search for life outside of Earth is a fundamental quest for human beings. However, it is a complex and challenging task that requires a deep understanding of science and technology.

The discovery of extraterrestrial life could have profound implications for our understanding of the universe and our place within it. It could also lead to revolutionary changes in our society, as we begin to explore and utilize extraterrestrial resources on a larger scale.

While we may be a long way from solving the mystery of extraterrestrial life, the search for it remains an exciting and rewarding pursuit that will undoubtedly lead us to new discoveries and insights into the wonders of the universe.