Paul has had the bike for five years 同义句是--- --- ---- five y

Paul has had the bike for five years.
=(It has been) five years (since) Paul bought the bike.
理由不好说,但后者是一个固定句型：
It has been some time since+从句
=It is some time since+从句
=Some time has passed since+从句
中文翻译：自从...以来多久了