Translating these two sentences into modern poetry is like this:
Eagle flies high, flying in the distant clouds;
The eagle sings loudly, as loud as a hurricane whistle.
Noun explanation:
Kite: Eagle.
Swing: adjective, lofty in appearance.
Qingyun: A cloud in the sky. The faint clouds in the sky are light blue in the sky background, which the ancients called Qingyun, corresponding to the dark clouds at low altitude.
Rustle: onomatopoeia, wind. Here, the eagle is described as making sounds like the wind.