高考To make the work easier, workers may have lubricated the paths either with wet clay or with the fat from cattle.
为了使工作更容易,工人们可能已经用湿粘土或牛油润滑了道路。
2015年高考英语四川卷 阅读理解 阅读E 原文
四级The result of constant muscle tension and stiffness of joints, many of them are avoidable, and simple flexibility training can prevent these by making muscles stronger and keeping joints lubricated (润滑 ).
肌肉持续紧张和关节僵硬的结果,其中许多是可以避免的,简单的柔韧性训练可以通过使肌肉更强壮和保持关节润滑来防止这些(润滑 ).
2013年6月阅读原文
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