孩子们欢快的笑声使原本沉闷的候车大厅一下子有了生气。Háizimen huānkuài de xiàoshēng shǐ yuánběn chénmèn de hòuchē dàtīng yíxiàzi yǒu le shēngqì.The children's cheerful laughter suddenly brought life to the otherwise dull waiting hall.
欢快的音乐一响,大家就跳起舞来。Huānkuài de yīnyuè yì xiǎng, dàjiā jiù tiào qǐ wǔ lái.As soon as the cheerful music started, everyone began to dance.
小鸟在树枝上欢快地唱着歌。Xiǎoniǎo zài shùzhī shang huānkuài de chàng zhe gē.The little bird sings merrily on the branch.