selector pushbutton

例句：

1. 1. The selector is responsible for selecting the best candidates for the job.
   选择器负责为工作挑选最佳候选人。
2. 2.The selector system allows users to easily select and save files.
   选择系统使用户能够轻松地选择和保存文件。
3. 3.The selector was designed to help people make better decisions based on their preferences.
   选择器旨在帮助人们根据他们的偏好做出更好的决策。