緒〔绪〕 seoi⁵ {xù}

1. beginnings
2. clues
3. mental state
4. thread

緒言〔绪-〕 seoi⁵ jin⁴ {xù yán}

preface

緒論〔绪论〕 seoi⁵ leon⁶ {xù lùn}

1. introduction
2. preface