However, in such case which modific

However, in such case which modification is required and shall cause the Contractor the additional costs, the Contractor needs to obtain the consent from the Owner.

Results (Chinese) 1:

然而，在这种情况下需要的修改，须安排该承建商的额外费用，承包商需要从所有者获得同意。

Results (Chinese) 2:

然而，在这种情况下，它的修改是必要的，应引起承包商的额外费用，承包商需要从业主取得同意。

Results (Chinese) 3:

然而，在这种情况下，需要修改，应使承包商的额外费用，承包商需要从业主取得同意。