这块木板上有几个小孔。

Zhè kuài mùbǎn shàng yǒu jǐ gè xiǎo kǒng.

There are several small holes in this wooden board.

为了通风，他在墙上打了几个通气孔。

Wèile tōngfēng, tā zài qiáng shàng dǎ le jǐ gè tōngqìkǒng.

To improve ventilation, he made several air holes in the wall.