可调节的斜靠背坐椅，睡椅。的英文

sleeper seat

• 可:    approve
• 调节:    regulate; adjust; ...
• 的:    4次方是 The fourth po ...
• 斜:    oblique; slanting; ...
• 靠背:    back
• 坐椅:    seat
• 睡:    sleep
• 椅:    chair