人们相信定期锻炼具有显著的健康益处。
It is believed that regular exercise has significant health benefits.
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it英 /ɪt/|美 /ɪt/
is英 /ɪz/|美 /ɪz/
believed英 /bɪˈliːvd/|美 /bɪˈlivd/
解释
It is believed 是用 it 作形式主语的被动结构，施动者（人们/各界）不重要，句子焦点在被相信的内容本身，属正式陈述语体。
It is believed that regular exercise has significant health benefits.
It is believed 是用 it 作形式主语的被动结构，施动者（人们/各界）不重要，句子焦点在被相信的内容本身，属正式陈述语体。