在英语中，一个从句在句子中用作主语时作单数看待。
In English, a clause acting as the subject of a sentence counts as singular.
在英语中，一个从句在句子中用作主语时当成单数看待。
In English, a clause acting as the subject of a sentence counts as singular.
在英语中，一个从句在句子中用作主语时当成单数看待。
In English, a clause acting as the subject of a sentence counts as singular.
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