n.歌曲；歌唱；(鸟等)鸣声
I woke up and was greeted by bird song. 我一觉醒来，鸟鸣之声不绝于耳。
The song of birds heralds spring. 鸟儿的歌唱预报春到。
He was awakened by the song of birds in the trees. 他被林中的鸟鸣声闹醒。
song的基本意思是“歌曲”,是可数名词。常用在sing后作同源宾语。
song还可作“歌唱”解,指“唱”的抽象动作,是不可数名词。
