ADJ-GRADED
(联系)脆弱的;(理由)站不住脚的,牵强的;(地位)不稳固的
If you describe something such as a connection, a reason, or someone's position as tenuous, you mean that it is very uncertain or weak.
例句
The cultural and historical links between the many provinces were seen to be very tenuous...
许多省份之间的文化和历史纽带被认为是很脆弱的。
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。