单词：keep to sth
履行诺言; 坚持，固守
keep to sth的用法和样例：
例句
- Nobody knows much about him; he keeps himself (very much) to himself.谁都不太了解他，因为他很少与人来往。
- Keep to the track the moor is very boggy around here.不要偏离车道--这一带沼泽地多。
- I'd be grateful if you kept this information to yourself.这事你若能保密则不胜感激。
- Things will only work out if we all keep to the plan.只有大家执行计划，事情才能成功。
- She's old and infirm and has to keep to the house.她因年老体弱而足不出户。
- Keep your opinions to yourself in future!你有意见留 自己用吧！