It also lists activity-specific features you should test, and it provides tips for testing Android user interfaces.

它还列出了你应该测试activity的哪些功能并提供了一些测试Android用户界面的意见。

youdao

Google gave web site owners some tips for optimizing their sites, which were part common sense and part its observations of how Instant Previews preformed during testing (short answer: users are 5% more likely to be satisfied with their search results if they get to preview the sites).

FORBES: Instant Previews Can Mean Instant Rejection