tā / bǎ / xiě mǎn / fán nǎo / de / jiù xìn / sī suì / rēng jìn / le / lā jī tǒng

她把写满烦恼的旧信撕碎，扔进了垃圾桶。

She tore up the old letter filled with her worries and threw it into the trash.