1 sentence

1. 拍摄人像时，通常会使用大光圈来虚化背景。

   pāi​shè rén​xiàng shí, tōng​cháng huì shǐ​yòng dà guāng​quān lái xū​huà bèi​jǐng.

   When shooting portraits, a large aperture is usually used to blur the background.

   Source: Dong Chinese Dictionary