他梦想有一天能拥有一辆凯迪拉克，这是他成功的象征。

He dreams of owning a ___Cadillac one day, a symbol of his success.

这款手表是腕表中的凯迪拉克，工艺精湛且设计独特。

This watch is the ___Cadillac of timepieces, with exquisite craftsmanship and unique design.