这家公司大肆宣传新产品。

Zhè jiā gōngsī dàsì xuānchuán xīn chǎnpǐn.

This company is aggressively promoting its new product.

恶势力在这个地区大肆活动。

È shì lì zài zhège dìqū dàsì huódòng.

Criminal forces are operating wantonly in this area.

网络上有人大肆传播虚假信息。

Wǎngluò shàng yǒu rén dàsì chuánbò xūjiǎ xìnxī.

Some people are spreading false information online without restraint.