oscillate
გამოთქმა:
/ˈɒsɪleɪt/
1move or swing back and forth in a regular rhythm:the grain pan near the front of the combine oscillates back and forth [with adverbial] vary or fluctuate between two states, limits, opinions, etc.:he was oscillating between fear and bravery
2 Physics vary in magnitude or position in a regular manner about a central point. (of a circuit or device) cause the electric current or voltage running through it to behave in this way.