cǎo cóng / lǐ / fā chū / xī xī suǒ suǒ / de / shēng yīn / yuán lái / shì / yī zhī / xiǎo tù zi草丛里发出悉悉索索的声音,原来是一只小兔子。A rustling sound came from the grass; it turned out to be a little rabbit.