While that approach works well for the pages that make up the surface Web, these programs have a harder time penetrating databases that are set up to respond to typed queries.

虽然这种做法对网络表层的网页行之有效，但这些自动搜寻程序难以穿透数据库，因为数据库是设置为应对输入型查询的。

youdao

Integration tests also require more complicated set up and assertions. This makes them harder to write than tests that isolate a single aspect.

集成测试还需要更复杂的设置和断言，这使它们比分别测试单独的方面更难编写。

youdao

A more thoroughgoing approach would be to make it harder for him to set up an account of his own.

一个更彻底的方法是让犯罪分子更难建立一个其自身的账户。

youdao

He argues that mobile penetration in America is unlikely to grow as fast as it did in Japan and Europe because population density is much lower there, making it harder to set up economically viable networks.

ECONOMIST: Who’s the real winner? | The

Laws passed this year make it even harder for Libyans to set up the only kind of company allowed.

ECONOMIST: Libya

But the report suggests that it is getting harder for manufacturers to set up competing means of distributing their products to the public.

ECONOMIST: Retailing: Food for thought | The