🚜 Xe công trình
7 điều thú vị về Xe công trình. Chạm vào một điều để đọc thêm.
Excavators use a big metal arm and bucket to dig holes in the ground.
Dump trucks carry heavy loads of dirt and tip them out the back.
Bulldozers push piles of dirt with a big flat blade at the front.
Cranes lift heavy things high up to help build tall buildings.
Cement mixer trucks spin around to keep the wet concrete soft.
The biggest dump trucks have tyres taller than a grown-up person.
The tallest tower cranes can lift things higher than a 20-storey building.