他 / 演讲 / 时 / 突然 / 忘词 / 当众 / 出糗 / 脸红 / 到 / 了 / 脖子根

他演讲时突然忘词，当众出糗，脸红到了脖子根。

He forgot his lines during the speech and made a public fool of himself, blushing to the back of his neck.