求一篇英语原创作文 The energy problem has become a hot issue in recent years.A lot of non-renewable energy needs conservating and saving.
英语翻译 Solar energy is inexhaustible human renewable energy.Is also a clean energy，does not produce any environmental pollution.Among the effective use of solar energy；the use of solar energy photovoltaic i.
非可再生能源英文怎么翻译 nonrenewable resources
