海滩上禁止吸烟。

Hǎitān shàng jìnzhǐ xīyān.

Smoking is prohibited on the beach.

电影院里禁止录影。

Diànyǐngyuàn lǐ jìnzhǐ lùyǐng.

Video recording is prohibited in movie theaters.

上课时禁止使用手机。

Shàngkè shí jìnzhǐ shǐyòng shǒujī.

Using phones is prohibited during class.