1.(犬等)松(咬)
2.解开(衣服上的)钮扣,拉开(皮包等的)揿钮
1.to release or open something by unfastening a snap or snaps
2.to release or open something by unfastening a press stud or press studs
1.The groom unsnaps the halter.
马夫把缰绳解开。