A ____ machine consists of ____ or ____ ____ machines working together. They also make our work ____. ____ machines can be ____ like a watch, or ____, like a ____. The ____ is a ____. It has got a ____ and a ____ and axle. The lever helps us ____ heavy objects. The wheel and axle help us ____ the wheelbarrow over a long distance.

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આપોઆપ સંગ્રહ થયેલ છે: ?