to approve sth in principle or to approve of sth in principle大体批准…;基本赞成…
The bill was approved in principle by 313 to 216.这项议案以313票对216票基本通过。
Bruce Fogal approved of the concept in principle but criticized the poor execution.布鲁斯•佛格尔基本赞同这个观念, 但批评其实施得不好。