信封被人动过手脚，然后又用胶带封上了。The envelope has been tampered with and then taped shut again.在该住宅区的小型购物街上有一半商店都已封上了门窗。Half the shops are boarded up on the estate's small shopping street.她重新粉刷了楼下的房间，并把二楼封上了。She repainted the dow...