尽管最近在开发可再生燃料方面取得了重要进展，但化石燃料价格较低这一因素可能会阻碍清洁能源技术的进一步创新和应用。
Notwithstanding important recent progress in developing renewable fuel sources, low fossil fuel prices could discourage further innovation in, and adoption of, cleaner energy technologies.
在过去数周已经取得了一些重要进展。
Some important progress has been made in the last few weeks.
中美在许多领域的合作取得了重要进展。
There has been considerable progress in many areas of cooperation between China and the US.
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