11 sentences

1. 天文学家正在观测遥远的天体。

   tiān​wén​xué​jiā zhèng​zài guān​cè yáo​yuǎn de tiān​tǐ.

   Astronomers are observing distant celestial bodies.

   Source: Dong Chinese Dictionary

2. 科学家正在观测日食的整个过程。

   kē​xué​jiā zhèng​zài guān​cè rì​shí de zhěng gè guò​chéng.

   Scientists are observing the entire process of the solar eclipse.

   Source: Dong Chinese Dictionary

3. 天文学家正在观测水星的运行轨道。

   tiān​wén​xué​jiā zhèng​zài guān​cè Shuǐ​xīng de yùn​xíng guǐ​dào.

   Astronomers are observing the orbit of Mercury.

   Source: Dong Chinese Dictionary

4. 天文学家正在观测木卫一的运动轨迹。

   tiān​wén​xué​jiā zhèng​zài guān​cè Mù​wèi Yī de yùn​dòng guǐ​jì.

   Astronomers are observing the trajectory of Io.

   Source: Dong Chinese Dictionary

5. 这是我们星球上最大的天文观测系统。

   zhè shì wǒ​men xīng​qiú shàng zuì dà de tiān​wén guān​cè xì​tǒng.

   It's the largest astronomical array anywhere on the planet.

   Source: OpenSubtitles

6. 由于距离遥远，肉眼很难观测到海王星。

   yóu​yú jù​lí yáo​yuǎn, ròu​yǎn hěn nán guān​cè dào Hǎi​wáng​xīng.

   It is difficult to see Neptune with the naked eye because it is so far away.

   Source: Dong Chinese Dictionary

7. 科考队深入南极大陆腹地进行气象观测。

   kē​kǎo​duì shēn​rù nán​jí dà​lù fù​dì jìn​xíng qì​xiàng guān​cè.

   The scientific expedition team went deep into the heart of the Antarctic continent for meteorological observations.

   Source: Dong Chinese Dictionary

8. 天文学家观测到了一颗突然爆发的新星。

   tiān​wén​xué​jiā guān​cè dào le yī kē tū​rán bào​fā de xīn​xīng.

   Astronomers observed a nova that suddenly erupted.

   Source: Dong Chinese Dictionary

9. 观测南方天空时，我们要学会辨别井的位置。

   guān​cè nán​fāng tiān​kōng shí, wǒ​men yào xué​huì biàn​bié Jǐng de wèi​zhi.

   When observing the southern sky, we should learn to identify the position of the 'Well' (Jing) constellation.

   Source: Dong Chinese Dictionary

10. 古代的人们通过观测漏壶中的水位来计时。

    gǔ​dài de rén​men tōng​guò guān​cè lòu hú zhōng de shuǐ​wèi lái jì​shí.

    Ancient people kept time by observing the water level in a clepsydra.

    Source: Dong Chinese Dictionary

11. 在古代，观测五星的运行是制定历法的重要依据。

    zài gǔ​dài, guān​cè wǔ​xīng de yùn​xíng shì zhì​dìng lì​fǎ de zhòng​yào yī​jù.

    In ancient times, observing the movement of the five planets was an important basis for creating calendars.

    Source: Dong Chinese Dictionary