keep to yourself
phrasal verbkeep (yourself) to yourself
- to avoid meeting people socially or becoming involved in their affairs
离群索居；不与人往来；不管别人的事 - Nobody knows much about him; he keeps himself very much to himself.
谁对他都不太了解，因为他很少和人交往。
- Nobody knows much about him; he keeps himself very much to himself.
keep something to yourself
- to not tell other people about something
对…秘而不宣（或保守秘密）；不将…说出去 - I'd be grateful if you kept this information to yourself.
你要是不把这消息传出去，我会不胜感激的。 - Kindly keep your opinions to yourself in future!
以后请把你的意见留给自己！
- I'd be grateful if you kept this information to yourself.