rum·bling /ˈrʌmblɪŋ/
轉筒混合; 雷鳴樣的
Rum·bling a. & n. from Rumble, v. i.
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rumbling
adj : continuous full and low-pitched throbbing sound; "the
rumbling rolling sound of thunder" [syn: grumbling]
n : a loud low dull continuous noise; "they heard the rumbling
of thunder" [syn: rumble, grumble, grumbling]