selective lever

例句：

1. 1. The restaurant offers a selection of dishes to choose from.
   这家餐厅提供多种菜肴供选择。
2. 2. She is very selective about what she wears.
   她对穿什么非常挑剔。
3. 3. Teachers should be selective in their teaching methods to ensure the best learning outcomes.
   教师在选择教学方法时应具有选择性，以确保最佳学习成果。