函hánenvelope; case; letterHSK 7-9PronunciationhánExample sentence他把信装进函里,寄给了远方的朋友。Tā bǎ xìn zhuāng jìn hán lǐ, jì gěi le yuǎnfāng de péngyǒu.He put the letter into an envelope and mailed it to his distant friend.Read and choose an answerOne fixed sampleExplore a sample