问题描述：
转述他人的话时用he says 还是he said
如提,这不懂
he says the American economy is growing more slowly than expected.
在新闻中播道：
1）The head of US federal reserve says the American economy is growing more slowly than expected.
2）The head of US federal reserve said the American economy is growing more slowly than expected.
这两句话分别用了says和said，各怎样理解？
如提,这不懂
he says the American economy is growing more slowly than expected.
在新闻中播道：
1）The head of US federal reserve says the American economy is growing more slowly than expected.
2）The head of US federal reserve said the American economy is growing more slowly than expected.
这两句话分别用了says和said，各怎样理解？
问题解答：
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