常见例句He often hawked toothpastes in the street during the vacations.上大学期间每逢放假，他便在大街上沿街兜售牙膏。Toothpastes use abrasives and chemicals to remove surface stains.牙膏可以用来祛除牙齿表面的污渍。 返回 Toothpastes