让我们唱一首歌 Let us sing a song ; Let sing a song
我们一起唱这首歌 we're singing a song together
让我们唱一首可爱的歌 Let's sing a lovely song
让我们唱一首欢乐的歌 Let's sing a happy song
让我们来唱一首歌 Let us sing a song
让我们唱一首新歌吧 Let us sing a new song ; Let sing a song
让我们唱一首英文歌 Let's sing an English song
让我们唱一首甜蜜的歌 Let's sing a sweet song
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