有趣的轮子Wheels help us go.A bus has four wheels.A bike has two wheels.Where else can we find wheels...鞋Have a goCan you name a thing with three wheels? ……

wheels might slip. According to the UK’s Network Rail, leaves on the tracks created 4.5 million.... Dutch Railways is currently conducting experiments with lasers just in front of the wheels ……

, a new kind of robot can also do the same job.NSK, a Japanese robotics company, is hard at work on a robot guide dog. The robot makes good use of wheels (轮子) on its four legs to roll around on the floor ……

, a new kind of robot can also do the same job.NSK, a Japanese robotics company, is hard at work on a robot guide dog. The robot makes good use of wheels (轮子) on its four legs to roll around on the floor ……

(clear), with a plain tone. They’ll do this to sound smart in a job interview, 6. ____ (hope) to improve... relaxing: the Ferris wheel (摩天轮)!Ferris wheels sit in the middle of some great cities around the world ……

from other employees (雇员). Pepper is a robot that looks like a human. His job is to tell people some... him. There are wheels under his body. They help Pepper move. The robot can do a lot of things ……

from other employees (雇员). Pepper is a robot that looks like a human. His job is to tell people some... him. There are wheels under his body. They help Pepper move. The robot can do a lot of things ……

them down. In India, there are not many people who want to do this hard job these days.To solve (解决... Amaran, can climb to the tops of trees with the help of eight wheels (轮子). Its arm extends (展开) once ……

polite.Jack: Too polite?Tom: When we came to a fence (栅栏), he let me go first.JOKEPIERThe wheels firstFather: If this car is made of chocolate, which part will you eat first?Son: I will eat the wheels ……

cockpits (驾驶舱), six engines (发动机) and 28 wheels (轮子). It has a wingspan (翼展) of 117 meters, longer than...). The Stratolaunch plane can do the job in a cheaper and quicker way.There are still many tests ……

will you eat first?Son: Its wheels (轮子), of course.Dad: Why?Son: Without wheels, it can’t run away ……

奥运自行车
How many wheels does a bike have? Two. But this man has three more on his bike. WHat does it look like now? The five Olympic rings （环）! ……

滑板旅行箱。Look at this suitcase (行李箱). It has three wheels. It can change into (变成) a skateboard (滑板). With this suitcase, you don’t need to worry about your heavy luggage (行李) anymore. ……

Ah, I’m so annoyed! I can’t get the wheels to turn on my bike!It looks like the chain is out of whack. Let me fix it for you.Out of whack: not working properly; broken or damaged ……

最长的怪物卡车Monster trucks have four huge wheels. A couple from the US made the world’s longest monster truck. It is about 9.75 meters long. ……