huì yì / yī kāi shǐ / qì fēn / yǒu xiē / jǐn zhāng / hòu lái / dà jiā / liáo kāi / le / bàn gōng shì lǐ / jiàn jiàn / biàn / de / xī xī hā hā / qǐ lái

会议一开始气氛有些紧张，后来大家聊开了，办公室里渐渐变得嘻嘻哈哈起来。

The meeting started out tense, but after everyone began talking freely, the office gradually filled with cheerful laughter.