1. The melodious voice of the young girl made him so happy.
    年轻女孩那悦耳的嗓音让他高兴。

2. He was eating an apple, giving a long melodious whoop at intervals, followed by a deep-toned ding-dong-dong, ding-dong-dong, for he was personating a steamboat.
    他在吃苹果，不时发出长长的悦耳的呼叫声，紧接着是音色深厚的叮咚咚、叮咚咚声，他正在扮一艘轮船。