a door that consists of a frame holding metallic or plastic netting; used to allow ventilation and to keep insects from entering a building through the open door;
"he heard the screen slam as she left"
screen door的用法和样例:
例句
The purpose of a screen door is to keep flies out. 纱门的作用是不让苍蝇飞进。
He comes into the houses, banging the screen door behind him. 他走进屋子,用力带上他后面的纱门。