close button

例句：

1. 1.The computer has a close button on the side.
   这台电脑侧面有一个关闭按钮。
2. 2.The door has a close button to keep it closed.
   门上有一个关闭按钮来保持门关闭。
3. 3.She pressed the close button on her phone to turn off the screen.
   她按了手机的关闭按钮来关闭屏幕。