他们到处在汽车上涂写粗鲁的标语。They went around painting rude slogans on cars.标语已出现在全城周围的墙上。Slogans have appeared on walls around the city.“ 喔, 就是那些专门写标语的小赤老 么 ?" What, those little Reds who're always chalking up slogans everywher...
整个胃肠道具有某些共同的结构特点.The entire gastrointestinal canal presents certain common structural characteristics.急性溃疡形成是显著的胃肠出血的起因.Acute ulcerations were responsible for significant gastrointestinal bleeding.一例17 岁 男孩,有胃肠功能不良史,主诉腹痛...