筒tǒngtube; cylinder; sleeve-like part of garmentHSK 7-9PronunciationtǒngExample sentence他把信卷成筒状塞进了口袋。Tā bǎ xìn juǎn chéng tǒng zhuàng sāi jìn le kǒudài.He rolled the letter into a tube and stuffed it into his pocket.Read and choose an answerOne fixed sampleExplore a sample