Translation of "Fluctuates" in Japanese

The price of gold fluctuates daily.

金の価格は日ごとに変動する。

That fluctuates with the phases of the moon.

‎海は月と共に変動する

Mary fluctuates between having an exaggerated sense of her own importance and an inferiority complex.

メアリーは過剰な自信と劣等感との間で揺らいでいる。