window opener

例句：

1. 1. The new window opener is much more efficient than the old one.
   这款新的开窗器比旧的更高效。
2. 2.The window opener was designed to make opening and closing windows easier.
   这款开窗器设计用来使打开和关闭窗户变得更简单。
3. 3. The window opener automatically adjusts the window's position when it senses a breeze.
   当开窗器感应到微风时，它会自动调整窗户的位置。