1. Other poor countries looked outward, strengthening their ties to the economic superpowers. 其他的穷国向外看，加强它们和经济大国的联系。
2. We look forward to strengthening still further our already close co-operation with the police. 我们期待进一步加强和警方现有的密切合作。
3. Strengthening social ties helps build communities and protect individuals against stress. 加强社会关系有助于建立社群，保护个人免受压力。
4. Strengthening these muscles with a series of eye exercises will prevent eye strain effectively. 通过一系列眼部运动来增强这些肌肉，可以有效预防眼睛疲劳。
5. That could be another explanation for why companies seem to be strengthening their talk of the practicality of their devices. 这可能就是另一个解释，解释了为什么公司似乎在加强它们对设备实用性的讨论。
