5 sentences

1. 他不该肆意破坏公物。

   tā bù gāi sì​yì pò​huài gōng​wù.

   He should not wantonly destroy public property.

   Source: Dong Chinese Dictionary

2. 叛军在村庄里肆意抢夺财物。

   pàn​jūn zài cūn​zhuāng lǐ sì​yì qiǎng​duó cái​wù.

   The rebels plundered property in the village at will.

   Source: Dong Chinese Dictionary

3. 狂风在空旷的野外肆意怒吼。

   kuáng​fēng zài kōng​kuàng de yě​wài sì​yì nù​hǒu.

   The gale howled across the open countryside.

   Source: Dong Chinese Dictionary

4. 贪官污吏在当地肆意鱼肉百姓。

   tān​guān wū​lì zài dāng​dì sì​yì yú​ròu bǎi​xìng.

   Corrupt officials exploited the local people at will.

   Source: Dong Chinese Dictionary

5. 我们绝不能容忍强权肆意陵侮弱小国家。

   wǒ​men jué bù néng róng​rěn qiáng​quán sì​yì líng​wǔ ruò​xiǎo guó​jiā.

   We must never tolerate powerful nations willfully bullying weaker ones.

   Source: Dong Chinese Dictionary