国家地理儿童百科 · 国家地理儿童百科流利级(高级)
Mighty Machines
重型机器
This machine is a bulldozer. It pushes away rocks and dirt. It clears the building site.
这台机器叫推土机,它推走岩石和泥土,它用于清洁建筑工地。
This machine is a front-end loaderIt scoops up rocks and dirt.
这台机器叫前端式装载机,它铲起岩石和泥土
This machine is a dump truck. It carries rocks and dirt. It dumps its load away from the building site.
这台机器叫自动倾卸货机,它运走岩石和泥土,它把垃圾从建筑工地运走。
This machine is an excavator. It digs into the dirt. It makes big holes in the ground.
这台机器是挖土机,它挖进泥土里,它在地面上挖出大洞。
This machine is a concrete mixer. It mixes concrete on the building site. Concrete is used to build tall buildings.
这台机器是混凝土搅拌机,它在建筑工地上搅拌混凝土,混凝土用来建造高楼。
