溃疡盖
Canker Cover "seals" and isolates the canker sore from contact with the tongue, teeth, and food.───Canker Cover将溃疡“密封”和孤立，避免接触舌头，牙齿和食物。
Canker Cover "seals" and isolates the canker sore from contact with the tongue, teeth, and food.───CankerCover将溃疡“密封”和孤立，避免接触舌头，牙齿和食物。
canker sorer───溃疡
canker sore───口腔溃疡；口疮
canker sores───口疮
take cover───躲藏，隐蔽
under cover───隐藏着；秘密地
canker sorest───溃疡病
tanker driver───油罐车司机