我以为我们之间已经确定的英文

and i was thinkin' we were set

every night when i'm laying in my bed

• 我:    I; my; me
• 以为:    think; believe; co ...
• 我们:    we
• 之间:    between; among
• 已经:    already
• 确定:    define; fix; deter ...