to dab at sth
1.+ something damp轻拭；轻敷
He was dabbing at the page, trying to dry the ink.他在轻轻擦拭那一页, 试图把墨水吸干。
2.+ your eyes, mouth轻擦
She dabbed at her mouth with the handkerchief.她用手帕轻拭了一下嘴。
3.+ wound轻按
Spot grabbed a towel and dabbed roughly at his wounds.斯波特抓起一条毛巾, 在伤口上略略按了按。