xià / shuǐ / zhī / qián / qǐng / xiān / bǎ / yóu / yǒng / jìng / tiáo / zhěng / dào / hé / shì / de / wèi / zhì

下水之前，请先把游泳镜调整到合适的位置。

Before getting in the water, adjust the swimming goggles to a comfortable position.