2 sentences

1. 钮经理在会议上详细介绍了去年的销售业绩。

   Niǔ jīng​lǐ zài huì​yì shàng xiáng​xì jiè​shào le qù​nián de xiāo​shòu yè​jì.

   Manager Niu gave a detailed presentation on last year's sales performance during the meeting.

   Source: Dong Chinese Dictionary

2. 老师帮那个小女孩缝好了外套上掉落的钮扣。

   lǎo​shī bāng nà gè xiǎo nǚ​hái féng​hǎo le wài​tào shàng diào​luò de niǔ kòu.

   The teacher helped the little girl sew back the button that had fallen off her coat.

   Source: Dong Chinese Dictionary