zài / xìn / zhōng / tā / jìnqíng / qīngtǔzhōngcháng / biǎodá / duì / gùxiāng / de / sīniàn

在信中，他尽情倾吐衷肠，表达对故乡的思念。

In the letter, he poured out his heart and expressed his longing for his hometown.