Bilateral cooperation in the areas of energy and railway has made smooth progress and enjoys broad prospect.
两国在能源、铁路等领域的合作进展顺利，前景广阔。
With the assistance of China, Tajikistan had made smooth progress in a number of its major infrastructure projects.
在中方帮助下，塔方一些重要基础设施项目建设进展顺利。
Thus friction between two rough planks can be lessened if they are made smooth.
两块粗糙厚木板经过打磨后，它们之间的摩擦力会减小。
Thus friction between two rough planks can be lessened if they are made smooth.
两块粗糙厚木板经过打磨后，它们之间的摩擦力会减小。
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