This discolouration is completely harmless.这种变色是完全无害的.Dual - action toothpaste with Xylitol and baking soda to remove stains and surface discolouration from teeth.这种双重作用的牙膏,含有木糖醇和小苏打,能清除牙齿表层的污垢和污色.Discolouration of silve...
Faber found his boastfulness irritating. " How many enemy aircraft did you shoot down? "费伯被他的吹嘘激怒了. “ 你打下几架敌机 呢 ? ”The fiddler's boastfulness also bothered Kunta.拉琴人的夸夸其谈也使昆塔厌烦.I am most unhappy at his boastfulness....