speak within door

• 别高声喊,叫,别让门外听见

speak within door的用法和样例：

例句

1. I found a stray cat crying at the door.
   我发现一只走失的猫在门口叫。
2. I'll speak to the newcomer about his wasting water.
   我要提醒那个新来的叫他不要浪费水。