keep under one Idiom
keep under one
keep secret, not tell He won
keep under one's hat
keep secret 保密
If I tell you the date of the election,can you keep it under your hat?假如我把选举日期告诉你,你能对此保密吗?
We have won the contract for the new tax computer,but keep it under your hat until it's announced officially.我们已经赢得了这份新型税务计算机的合同,但在正式宣布之前还要保密。
Mr.Jones knew who had won the contest,but he kept it under his hat until it was announced publicly.琼斯先生早已知道谁在这次比赛中获胜,但他保守秘密直到正式宣布为止。
keep under one's hat|hat|keep
v. phr.,
informal To keep secret; not tell.
Mr. Jones knew who had won the contest, but he kept it under his hat until it was announced publicly. 
Often used as a command.
Keep it under your hat. Synonym: KEEP TO ONESELF.
keep beneath one
keep secret, not acquaint He won
keep beneath one's hat
keep abstruse 保密
If I acquaint you the date of the election,can you accumulate it beneath your hat?假如我把选举日期告诉你,你能对此保密吗?
We accept won the arrangement for the new tax computer,but accumulate it beneath your hat until it's appear officially.我们已经赢得了这份新型税务计算机的合同,但在正式宣布之前还要保密。
Mr.Jones knew who had won the contest,but he kept it beneath his hat until it was appear publicly.琼斯先生早已知道谁在这次比赛中获胜,但他保守秘密直到正式宣布为止。
keep beneath one's hat|hat|keep
v. phr.,
informal To accumulate secret; not tell.
Mr. Jones knew who had won the contest, but he kept it beneath his hat until it was appear publicly. 
Often acclimated as a command.
Keep it beneath your hat. Synonym: KEEP TO ONESELF. Dictionary