本帖最后由 叶凝云 于 2013-7-14 11:19 编辑
How does the sound of birds singing make you feel? Their natural sounds can have some surprising benefits such as helping you work or study better.
Rob and Jen listen to some different birdsongs and find out why the 'Tweet of the Day' has nothing to do with Twitter! This week's question: How many species of birds are there on Britain's official bird list? a) 396
b) 496
c) 596 Listen to the programme to find out the answer.
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