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1.The designer has created a folding sash that can be easily opened and closed.
设计师制作了一款可以轻易打开和关闭的折叠式栏杆。
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2. The new car comes with a folding sash for the rear window.
新款汽车配备了可折叠后窗的栏杆。
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3.The folding sash on the balcony provides extra privacy while still allowing easy access to the outside.
阳台上的折叠栏杆既提供了额外的隐私，又方便从外部进出。