adhere to a principle的用法和样例：
- Smile first,Customers first , Always adhere to a principle:always be considerate of other people's feelings, treat others like the way you would like to be treated.
- Macrobiotic adhere to a diet consist primarily of whole grains and bean.
- They still adhere to a policy of isolation.
- They mostly adhere to a diet which avoids meat.
- Strict adherence to a denomination; sectarianism.