求问以下句型

求问以下句型

题目
求问以下句型
CaughtOffside understands that the Gunners are closing in on an agreement for the French youngster to move to north London in a £23.5m deal,with the option of a buy-back clause for Real should they look to re-sign him in the future.with the option of a buy-back clause for Real should they look to re-sign him in the future.这里的 should they look to re-sign him in the future是什么用法?
答案
should they look to re-sign him in the future = if they look to re-sign him in the future
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