keep back
US
UK keep back vi: (stay at distance)
SC 不要靠近
SC 站远点
A notice outside the monkeys' cage warns visitors to keep back.
keep [sth/sb] back vtr phrasal sep: (prevent getting closer)
SC 使无法靠近
A fence around the racing track keeps spectators back.
keep [sth] back vtr phrasal sep: informal (save)
SC 留出 liú chū
SC 留下 liú chū，liú xià
It's a good idea to keep some money back for unexpected needs.