Hi
TPO10裡有一句
Only when European decorative themes were introduced did these meanings become obscured or even lost.
這句我能解析出Only when...一句，these meanings...一句
兩句間的did在句中是什麼意思/用法呢?
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TPO10裡有一句
Only when European decorative themes were introduced did these meanings become obscured or even lost.
這句我能解析出Only when...一句，these meanings...一句
兩句間的did在句中是什麼意思/用法呢?
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