凹陷

dì miàn āo xiàn

地面凹陷。

The ground caved in.

liǎng jiá āo xiàn

两颊凹陷

have sunken cheeks

qì chē wěi bù bèi zhuàng hòu yán zhòng āo xiàn

汽车尾部被撞后严重凹陷。

The back of the car was badly dented in the collision.

āo xiàn de shuāng yǎn

凹陷的双眼

hollow eyes