Háizi / dì / yī / cì / chuān / qián / shuǐ / yī / shí / jiào / liàn / yì / zhí / zài / páng / biān / bǎo / hù / tā

孩子第一次穿潜水衣时，教练一直在旁边保护他。

When the child wore a diving suit for the first time, the instructor stayed nearby to protect him.