政府机构表示，新规定旨在改善血液供应系统。
The government agency says new rules are designed to improve the blood supply system.
他们写道，他们的主旨在改善女儿与后代生活的世界。
Their aim, they wrote, is to improve the world for their daughter and future generations.
他们写道，他们的主旨在改善女儿与后代生活的世界。
Their aim, they wrote, is to improve the world for their daughter and future generations.
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