有時候
参考来源

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1 2 3  《有時候》 单曲内页 Jive唱片 （1999年）
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↑  . Nederlandse Vereniging van Producenten en Importeurs van beeld- en geluidsdragers.   [2021-07-22] （荷兰语）.  在“Artiest of titel”框输入“Sometimes”。 在“Alle jaargangen”下拉菜单选择“1999”。
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