keep to

柯林斯词典

1. PHRASAL VERB If you keep to a rule, plan, or agreement, you do exactly what you are expected or supposed to do. 遵守
You've got to keep to the speed limit. 你必须遵守限速的规定。
2. PHRASAL VERB If you keep to something such as a path or river, you do not move away from it as you go somewhere. 不偏离
Please keep to the paths. 请不要偏离道路。
3. PHRASAL VERB If you keep to a particular subject, you talk only about that subject, and do not talk about anything else. 不偏离 (主题)
Let's keep to the subject, or you'll get me too confused. 咱们不要离题，否则你会把我弄得很糊涂。
4. PHRASAL VERB If you keep something to a particular number or quantity, you limit it to that number or quantity. 把…局限于
Keep costs to a minimum. 把成本控制到最低。