如果你这几年一直用的是同一部苹果手机，你一定注意到它的运行速度变慢了，更新到最新系统后尤其如此。甚至曾有用户因iOS 9操作系统在iPhone 4s上运行太慢而起诉苹果公司。
If you've had the same iPhone for a couple of years or more, you've probably started to notice its performance slowing down a little, especially on newer versions of the software. Apple has even been sued for the slow performance in iOS 9 when it is used on an iPhone 4s.
但不是每个人都愿意采取这样的过激之举。对于其他人来说，新的解决办法已经出现了：清空苹果应用商店的内存，手机就能立即提速。
But for anyone not up to taking such drastic measures, a solution has emerged that can provide an immediate speed boost by clearing up memory in the phone's App Store.
旧金山程序员扎卡里·德赖尔在推特上分享了这个小窍门。他透露，点击苹果应用商店的一系列图形按钮，可以清空因应用更新卡住而积压的数据。
San Francisco developer Zachary Dryer shared the hidden trick on Twitter, revealing that pressing a series of buttons in the iOS App Store can get rid of a backlog of stuck app updates.
在应用商店，连续点击下方五个按钮中的任一按钮十次，可以清空缓存。这些数据本该是暂时保存的，但会因为软件的错误而持续占用宝贵的内存。
On the App Store, press any one of the five buttons along the bottom of the app 10 times in a row to clear the cached memory. This is data that is meant to be held temporarily but can continue to take up precious resources due to a software error.
连续点击同一个按钮，手机会白屏几秒钟，然后返回到应用商店主页。此时，因应用更新而积压的所有数据已被清空。
As long as the same button is pressed in succession, the screen should go white for a couple of seconds and return to the App Store's homepage, with any app update backlogs cleared.
应用商店运行慢时，这招很管用。尽管它意味着应用更新失败了，却能帮助提速。这招也适用iPad。
This is a useful trick if your App Store gets stuck, which can mean app updates not coming through, but should also provide a speed boost. The trick will also work on the iPad.
这位程序员称，这招对清理iTunes、iBooks、应用商店以及苹果手表应用的缓存都很奏效，但不适用播客、音乐、游戏中心和iMessage应用。
According to the developer, the trick works in iTunes, iBooks, App Store and the Apple Watch app, but not in Podcasts, Music, Game Center or iMessage.