形容词
中文翻译：无拉链的
同义词：
['zip-free', 'zip-less']
例句：
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1. The new jeans are zipless, so they're very comfortable to wear.
这些新牛仔裤是无拉链的，穿起来非常舒适。
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2. The bag is zipless, so it doesn't need a zipper.
这个包是无拉链的，所以不需要拉链。
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3. The shoes are zipless, which means they don't have any zippers.
这双鞋是无拉链的，也就是说它们没有拉链。