小婴儿多趴着睡是非常重要的，因为它可以促进他们的健康和发育。以下是一些原因：
1. 增加肌肉力量：趴着睡可以帮助婴儿锻炼脖子和背部肌肉力量，这对于学会坐起来、爬行和走路都非常重要。
2. 减少猝死风险：趴着睡可以减少婴儿患猝死症候群（Sudden Infant Death Syndrome，SIDS）的风险。研究表明，婴儿趴着睡可以使他们的呼吸道畅通，减少呼吸困难和窒息的可能性。
3. 改善消化：趴着睡可以帮助婴儿排便和消化，由于在腹部位置，这种姿势可以增加内脏的运动，有助于减轻腹胀和便秘的情况。
4. 提高睡眠质量：趴着睡可以使婴儿更加稳定地睡眠。睡眠的质量对婴儿的身体和大脑发育至关重要。
总之，对于小婴儿来说，多趴着睡是增强健康和发育的一个重要方面。然而，在趴着睡的过程中，父母必须时刻保持监管，以确保婴儿的安全性。 英文翻译：
Why is it important for infants to sleep on their stomachs？
It is important for infants to spend more time sleeping on their stomachs because this can promote their health and development. Here are some reasons why:
1. Strengthening muscle strength: Sleeping on their stomachs can help infants exercise the muscles in their neck and back， which is important for learning to sit up， crawl， and walk.
2. Reducing the risk of sudden death: Sleeping on their stomachs can reduce the risk of sudden infant death syndrome (SIDS). Research shows that sleeping on their stomachs can keep their airways clear and reduce the risk of breathing difficulties and suffocation.
3. Improving digestion: Sleeping on their stomachs can help infants with bowel movements and digestion. This position can increase the movement of the internal organs， which helps to alleviate bloating and constipation.
4. Improving sleep quality: Sleeping on their stomachs can help infants sleep more soundly. The quality of sleep is essential for infant body and brain development.
In conclusion， spending more time sleeping on their stomachs is an important aspect of promoting health and development for young infants. However， parents must always supervise during this process to ensure the safety of their infants.
