1. But alternative explanations are hard to find. 但很难找到其他的解释。
2. Some argue that it is hard to find differences between London and Tokyo. 一些人认为，很难找到伦敦和东京之间的差异。
3. Firms say it is already hard to find people with the right technical or engineering skills. 企业表示，现在已经很难找到具备合适技术或工程技能的人了。
4. Before star chefs such as Oliver began making cooking fashionable, it was hard to find a restaurant in London that was open after 9 pm. 在奥利弗等明星厨师开始让烹饪变得时尚之前，在伦敦很难找到一家晚9点以后营业的餐厅。
5. Part-time work is generally hard to find. 兼职工作一般很难找。
