为了给会议增添一点轻松的气氛，主持人先讲了一个笑话。

Wèile gěi huìyì zēngtiān yìdiǎn qīngsōng de qìfēn, zhǔchírén xiān jiǎng le yí gè xiàohua.

To add a relaxed atmosphere to the meeting, the host first told a joke.

她的到来为这个安静的小镇增添了不少活力。

Tāde dàolái wèi zhège ānjìng de xiǎozhèn zēngtiān le bù shǎo huólì.

Her arrival added a lot of energy to this quiet small town.

墙上挂几幅画，可以给客厅增添一点温暖的气氛。

Qiáng shàng guà jǐ fú huà, kěyǐ gěi kètīng zēngtiān yìdiǎnr wēnnuǎn de qìfēn.

Hanging a few paintings on the wall can add a bit of warmth to the living room.