效率和技术是在波动的石油市场中生存的关键。
Efficiency and technology are the keys to surviving in a volatile oil market.
Education is the foundation upon which we'll build a more sustainable aquaculture industry.
发愤研究学问,常常忘记吃饭,一旦有所收获便又高兴地忘记了忧愁,连自己的渐趋衰老也没有感觉到。
释义:在富贵时,朋友无数;一旦遭遇困难,却无人帮助。