It is good manners to finish everything on your table.
吃完你盘子里的所有食物是有礼貌的表现。
It is good manners to take a bunch of flowers to visit the host.
带一束花去拜访主人是有礼貌的表现。
It is good manners to wait in line.
排队等候是有礼貌的表现。