yī shēng / jiě shì / shuō / tūn yàn / hé / dǎ hā qian / kě yǐ / bāng zhù / yān gǔ guǎn / kāi fàng / huǎn jiě / ěr nèi / de / yā lì

医生解释说，吞咽和打哈欠可以帮助咽鼓管开放，缓解耳内的压力。

The doctor explained that swallowing and yawning can help open the Eustachian tube and relieve pressure in the ear.