As Jo waved her hands and gave a sigh of rapture, the family went off into a gale of merriment, and Mr. Laurence laughed till they thought he'd have an apoplectic fit.

随着乔挥舞双手，发出一声狂喜的叹息，全家人爆发了一阵欢笑，劳伦斯先生哈哈大笑。使大家担心他会中风。