This is the 8594th most frequent Japanese word.
揺れ動い
"揺れ動い" means "to sway" or "to waver."
In this sentence, "揺れ動いている" describes the state of his resolution being unstable or uncertain, indicating dynamics in mental or emotional stability.
彼の決心は揺れ動いている。
His resolution is wavering.
Here, "揺れ動き始めた" describes a physical oscillation or swaying motion of the Ferris wheel, demonstrating its physical application.
観覧車が揺れ動き始めた。
The Ferris wheel began to sway.
In this context, "揺れ動いている" refers to the fluctuations or instability within a market environment, indicating economic or operational changes.