explain background
解释的背景
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The president then introduces Manchin and Toomey to explain their background check legislation.
CNN: Senate to start votes on gun bill
All parties need to explain the background and evidence for their policies.
ECONOMIST: Bagehot
He went on to explain the background to his thinking about the current situation in an essay in The Atlantic, Why There Are Too Many Patents In America.
FORBES: The Big Fix #3: How To Untangle The Mess With Software Patents
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