【英语时差8,16】动作快点，加快脚步

Most machines that convey us across land are built with gears¹. Both cars and bicycles, for example, have a number of metal gears that can be shifted as we increase our speed. Low gears are for going slowly or climbing slowly up hills. High gears are for when we have reached a faster speed and want to cruise² along quickly for a while. This idiom, to "put it into high gear," is simply saying that someone is moving too slowly and they had better speed up. We seldom use it when someone is driving a vehicle, however. Instead, we often say this when someone is acting³ lazy, not doing their work, walking too slowly, or even still sleeping in bed! It's another way to say, "Hurry up, because there is something important to do."

1 gears   

n.齿轮( gear的名词复数 )；装备；挡；（做某事的）速度

参考例句：

• Careless use of the clutch may damage the gears. 离合器使用不慎可能会损坏传动装置。
• A car has five gears. 汽车有五挡。 来自《简明英汉词典》

2 cruise   

v.巡航，航游，缓慢巡行；n.海上航游

参考例句：

• They went on a cruise to Tenerife.他们乘船去特纳利夫岛。
• She wants to cruise the canals of France in a barge.她想乘驳船游览法国的运河。

3 acting   

n.演戏，行为，假装；adj.代理的，临时的，演出用的

参考例句：

• Ignore her,she's just acting.别理她，她只是假装的。
• During the seventies,her acting career was in eclipse.在七十年代，她的表演生涯黯然失色。