8 sentences

1. 运动员在比赛时需要监测心率。

   yùn​dòng​yuán zài bǐ​sài shí xū​yào jiān​cè xīn​lǜ.

   Athletes need to monitor their heart rate during competitions.

   Source: Dong Chinese Dictionary

2. 气象台正在密切监测风向的变化。

   qì​xiàng​tái zhèng​zài mì​qiè jiān​cè fēng​xiàng de biàn​huà.

   The weather station is closely monitoring changes in wind direction.

   Source: Dong Chinese Dictionary

3. 气象站正在严密监测海上的风情。

   qì​xiàng​zhàn zhèng​zài yán​mì jiān​cè hǎi​shàng de fēng​qíng.

   The weather station is closely monitoring the wind conditions at sea.

   Source: Dong Chinese Dictionary

4. 地质学家监测到了频繁的火山活动。

   dì​zhì​xué​jiā jiān​cè dào le pín​fán de huǒ​shān huó​dòng.

   Geologists have monitored frequent volcanic activity.

   Source: Dong Chinese Dictionary

5. 雷达监测到有敌机向我方阵地来袭。

   léi​dá jiān​cè dào yǒu dí​jī xiàng wǒ​fāng zhèn​dì lái​xí.

   Radar has detected enemy aircraft attacking our positions.

   Source: Dong Chinese Dictionary

6. 雷达监测到有一枚飞弹正向我方袭来。

   léi​dá jiān​cè dào yǒu yī méi fēi​dàn zhèng xiàng wǒ​fāng xí​lái.

   Radar detected a missile heading toward us.

   Source: Dong Chinese Dictionary

7. 科学家们正在密切监测空气质量的变化。

   kē​xué​jiā men zhèng​zài mì​qiè jiān​cè kōng​qì zhì​liàng de biàn​huà.

   Scientists are closely monitoring changes in air quality.

   Source: Dong Chinese Dictionary

8. 医生正在严密监测病人的各项生命体征。

   yī​shēng zhèng​zài yán​mì jiān​cè bìng​rén de gè xiàng shēng​mìng tǐ​zhēng.

   Doctors are closely monitoring the patient's vital signs.

   Source: Dong Chinese Dictionary