1. 必然趋势：inexorable law ==> 必然规律 | inexorable trend ==> 必然趋势 | inextensional buckling ==> 非延伸压屈
1. Replacing incandescent bulbs with energy saving ones is an inexorable global trend, as they save energy and reduce greenhouse gas emission.
2. With the rise of China and other emerging economies, the trend of development is inexorable.