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Seesaw
01
Качели-балансир
a piece of playground equipment made of a long flat piece of wood or iron balanced in the middle, on each side of which children sit to take a turn going up and down
to seesaw
01
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move up and down as if on a seesaw
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ride on a plank
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move unsteadily, with a rocking motion
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to constantly change from one opinion, state, or mood to another and then back again
Пример
The seesaw worked perfectly because each end had an equal counterweight.
The plank acted as a fulcrum for the seesaw, allowing the children to take turns going up and down.
