这条牛仔裤的裤脚已经开始磨损了。

The edges of these jeans are starting to ___fray.

持续的交通噪音开始让她的神经变得紧张。

The constant traffic noise started to ___fray her nerves.

长时间的工作后，他的耐心开始逐渐消耗殆尽。

After long hours of work, his patience began to ___fray.