non-separating zipper

例句：

1. 1. Thenew design of the dress features a non-separating zipper that makesit easy to put on and take off.
   这款连衣裙的新设计有一个不分离的拉链，使得穿脱变得非常方便。
2. 2.The luggage has a non-separating zipper that keeps everything secure duringtransportation.
   行李有一个不分离的拉链，在运输过程中可以确保所有物品的安全。
3. 3. The designer used a non-separating zipper to create a seamlesslook in the garment.
   设计师使用了不分离的拉链来为这件衣物创造无缝的外观。