n.(汽车的)变速箱，齿轮箱，(自行车的)传动装置

He's a shifter, able to change into any animal he desires.
他是个变形者，能变成任何他想要的动物。
The shifter in the car broke, making it impossible to change gears.
车里的变速杆坏了，无法换挡。
As a shapeshifter, she can transform into a bird and fly away.
作为变形者，她可以变成一只鸟飞走。
I had to replace the shifter cable on my bike.
我不得不更换自行车上的变速线。
In this story, the main character is a shifter who must hide his true identity.
在这个故事中，主角是一个必须隐藏真实身份的变形者。
She shifted gears smoothly using the shifter.
她使用变速杆平稳地换挡。
The shifter community is very secretive, keeping their abilities hidden from humans.
变形者的社区非常保密，将他们的能力隐藏起来不让人类知道。
After years of practice, he became a skilled shifter, able to change forms in seconds.
经过多年的练习，他成为了一个熟练的变形者，能够在几秒钟内改变形态。
I accidentally put the shifter in reverse instead of drive and backed into a wall.
我不小心把变速杆放到了倒挡而不是前进挡，结果撞到了墙上。
Some people believe that shapeshifters are just mythical creatures, but I know they exist.
有些人认为变形者只是神话中的生物，但我知道他们存在。