spot speck speckle stripe
When not removed, plaque causes tooth decay and gum disease.
牙斑如果不清除就会导致牙齿蛀蚀和牙龈疾病。
—— 柯林斯例句The tarnish lay thick on the inside of the ring.
戒指内侧有一层厚厚的锈斑。
—— 柯林斯例句She was rather fat, and her complexion was muddy and spotty.
她比较胖,脸色暗淡、多斑。
—— 柯林斯例句Cracks, bulges, crumbling pointing and damp patches mean trouble.
裂缝、凸起、剥落的勾缝和湿斑都意味着存在问题。
—— 柯林斯例句Deposits of plaque build up between the tooth and the gum.
牙齿和牙龈之间会滋生牙斑。
—— 柯林斯例句