to keep one's plans or intentions secret
将计划或意图保密 (jiāng jìhuà huò yìtú bǎomì)
"During the negotiations, she kept her cards close to the chest."
"在谈判期间,她保持了自己的卡片靠近胸部。" (zài tánpàn qījiān, tā bǎochíle zìjǐ de kǎpiàn kàojìn xiōngbù)
a change in leadership or authority
a part of the complete solution or understanding
to watch someone carefully because you don’t trust them comp...
to make use of a resource or ability
a family member who is considered a disgrace
to prepare energetically for something