8 sentences

1. 我们必须除掉这些害虫。

   wǒ​men bì​xū chú​diào zhè​xiē hài​chóng.

   We must get rid of these pests.

   Source: Dong Chinese Dictionary

2. 这些害虫必须彻底消灭。

   zhè​xiē hài​chóng bì​xū chè​dǐ xiāo​miè.

   These pests must be completely eradicated.

   Source: Dong Chinese Dictionary

3. 蝗、螟是庄稼的主要害虫。

   huáng, míng shì zhuāng​jia de zhǔ​yào hài​chóng.

   Locusts and stem borers are major crop pests.

   Source: Dong Chinese Dictionary

4. 他想药死那些害虫。

   tā xiǎng yào sǐ nà​xiē hài​chóng.

   He wants to poison those pests.

   Source: Dong Chinese Dictionary

5. 这种小鸟主要食田里的害虫。

   zhè zhǒng xiǎo​niǎo zhǔ​yào shí tián lǐ de hài​chóng.

   This bird mainly feeds on pests in the fields.

   Source: Dong Chinese Dictionary

6. 这种杀虫剂能有效消灭多种害虫。

   zhè zhǒng shā​chóng​jì néng yǒu​xiào xiāo​miè duō zhǒng hài​chóng.

   This pesticide can effectively eliminate many types of pests.

   Source: Dong Chinese Dictionary

7. 这种高效农药能迅速清除农田里的害虫。

   zhè zhǒng gāo​xiào nóng​yào néng xùn​sù qīng​chú nóng​tián lǐ de hài​chóng.

   This highly effective pesticide can quickly eliminate pests in the fields.

   Source: Dong Chinese Dictionary

8. 如果不铲除这些社会的害虫，国家就不得安宁。

   rú​guǒ bù chǎn​chú zhè​xiē shè​huì de hài​chóng, guó​jiā jiù bù dé ān​níng.

   If these social pests are not eradicated, the country will never have peace.

   Source: Dong Chinese Dictionary