tā / bǎ / xiě / hǎo / de / xìn / zhuāng / jìn / piāo / liú / píng / tóu / xiàng / le / dà / hǎi

他把写好的信装进漂流瓶，投向了大海。

He put the letter he had written into a message in a bottle and cast it into the sea.