This decision puts the President in a somewhat tenuous position.这个决定使得总统的位置有些岌岌可危。a tenuous hold on life命若游丝He has a rather tenuous grasp of reality.他对现实认识很肤浅....
The ostensible reason for his absence was illness.他假托生病缺勤。The ostensible reason wasn't the real reason.表面上的理由并不是真正的理由.The ostensible purpose of these meetings was to gather information on financial strategies.这些会议声称...