TSUMUGU · TOCFL C1 (est.) · 詞
序幕
ㄒㄩˋ ㄇㄨˋ · xùmù
noun — a prologue; the opening of an event, the prelude to what follows
關 · Related
言xùyána book's preface — the same 閉bìmùthe closing, curtain down — the same , at the other end