keep to oneself
un.保持；紧贴；秘而不宣；独自承受
保守秘密；不与人来往；不与他人交往
例句
1.lay low To keep oneself or one's plans hidden.
使自己或自己的计划不为人所知
2.Do away with the immunity of decline or hurt cell, to keep the oneself stability;
去除衰退或损伤细胞的免疫，以保持自身稳定；
