齿轮互相啮合.The teeth of the wheel gear into each other.这个大齿轮带动小齿轮使滚筒旋转.This large gear turns the small one to rotate the cylinder.天气冷时齿轮润滑油可能凝结而形成凹槽.Gear lubricants may congeal and channel in cold weather....
Freda: What can you see a tram or a double - decker ?弗蕾达: 你可以看到有轨电车或 双层?Freda knew that she would not win, nevertheless she went on trying.弗丽达知道她不会取胜, 然而她还继续试下去.My sweet Freda...我亲爱的弗蕾达Freda heated up a pie for me.弗蕾达为我热...