noun🔗Share咚, 砰, 沉闷的撞击声 The sound of a dull impact."The heavy textbook fell to the floor with a thud. "那本厚重的教科书“咚”的一声掉到了地上。soundChat with AIVocabulary GamePractice Reading
noun🔗Share雷公，共和F-105雷霆战士战斗机 Republic F-105 Thunderchief jet ground attack fighter."The thud of the F-105 Thunderchief roared across the sky, followed by a sharp explosion. "雷公战机的轰鸣声划破长空，紧随其后的是一声尖锐的爆炸。militaryvehicleweaponChat with AIVocabulary GamePractice Reading
verb🔗Share发出沉闷的撞击声，咚地一声 To make the sound of a dull impact."The heavy textbook thudded onto the desk, making everyone look up. "那本厚重的教科书咚地一声掉在桌子上，引得大家纷纷抬头。soundChat with AIVocabulary GamePractice Reading
