He told the absurd story with a straight face, and nobody guessed he was joking.
他一本正经地讲着荒唐故事，没人猜到他是在开玩笑。
来源：Expression Original Learning Examples — 阅读必备库 — batch40 · Expression Editorial Team段 editorial-base-straight-faceOriginal English example and Chinese translation written for Expression; no third-party sentence text is reproduced.
I tried to keep a straight face during his speech.
他讲话时，我努力忍住不笑。
来源：Expression 原创小说语境例句 — 首批精选 2026-11-07 · Expression / AI 原创例句段 reading-starter-92cb1fdfdb03dee4-1项目 AI 原创学习例句；非真实新闻报道或作品摘录
Watching the judge's wig slide sideways, Mara struggled to keep a straight face.
看着法官的假发滑向一边，玛拉努力忍住不笑。
来源：Expression 原创小说语境例句 — 首批精选 2026-11-07 · Expression / AI 原创例句段 reading-starter-92cb1fdfdb03dee4-2项目 AI 原创学习例句；非真实新闻报道或作品摘录
