The presentations at the symposium emphasized the multiple benefits of increasing the use of natural gas to provide reliable, affordable and environmentally sound forms of energy for sustainable development.
6. 在专题讨论会上作的各项介绍都强调，增加使用天然气具有多种惠益，可以提供可靠、负担得起和无害环境的能源，促进可持续发展。