3 sentences for 起子 (qǐ​zi)

1. 发面时需要加点起子。

   fā​miàn shí xū​yào jiā diǎn qǐ​zi.

   You need to add some leavening agent when proofing the dough.

   Source: Dong Chinese Dictionary

2. 请递给我那把十字起子。

   qǐng dì​gěi wǒ nà bǎ shí​zì qǐ​zi.

   Please hand me that Phillips head screwdriver.

   Source: Dong Chinese Dictionary

3. 这瓶盖太紧了，得用起子。

   zhè píng​gài tài jǐn le, děi yòng qǐ​zi.

   This bottle cap is too tight; I need a bottle opener.

   Source: Dong Chinese Dictionary