3 sentences

1. 厉先生是这里的负责人。

   Lì xiān​sheng shì zhè​lǐ de fù​zé​rén.

   Mr. Li is the person in charge here.

   Source: Dong Chinese Dictionary

2. 机关单位应当厉行节约，杜绝浪费。

   jī​guān dān​wèi yīng​dāng lì xíng jié​yuē, dù​jué làng​fèi.

   Government agencies should strictly practice economy and eliminate waste.

   Source: Dong Chinese Dictionary

3. 他平日总是面带厉色，让人不敢亲近。

   tā píng​rì zǒng​shì miàn​dài lì sè, ràng rén bù gǎn qīn​jìn.

   He usually has a stern look on his face, making people afraid to get close to him.

   Source: Dong Chinese Dictionary