a. marked by suitability or rightness or appropriateness
s. having all the qualities typical of the thing specified; not just a snack"
s. limited to the thing specified
s. appropriate for a condition or purpose or occasion or a person's character, needs
a. 适当的, 固有的, 高尚的, 专属的
adv. 完全地, 彻底地
1. It's important to wear proper shoes when you go hiking.
当你去远足时，穿合适的鞋子是很重要的。
2. She always knows how to behave in a proper manner at formal events.
她总是知道在正式活动中如何得体地举止。
3. Make sure to follow the proper procedures when submitting your application.
提交申请时，请务必遵循正确的程序。