英语语法分析

To make the work easier, workers may have lubricated the paths either with wet clay or with the fat from cattle.

为了减轻施工难度，工人们可以用湿粘土或牛的脂肪来润滑道路。

Not only do tears keep your eyes lubricated, but they also contain a substance that kills certain bacteria so they can't infect your eyes.

眼泪不仅能使你的眼睛保持湿润，它们还含有一种物质，可以杀死某些细菌，使它们不会感染你的眼睛。

Permanently sealed and lubricated ball bearings front and rear.

前后端盖装有永久密封和自润滑的滚珠轴承。