David looked up and back , a look of astonishment crossed his face.

大卫仰脸回首一望,大吃一惊.

辞典例句

Raise your butt up to sky and move thighs up and back.

将臀部抬高向天空,大腿向上向后移动.

互联网

For adults, gently pull the earlobe up and back ( pull down and back for children ).

将成人耳叶轻轻向上后拉 ( 儿童则向下、后拉 ).

互联网