Lǚxíng / shí / dài / jǐ / bāo / kǒufú / bǔyè / yán / yǐ / bèi / shēntǐ / tuōshuǐ / shí / shǐyòng

旅行时带几包口服补液盐，以备身体脱水时使用。

Take a few packets of oral rehydration salts when traveling in case you become dehydrated.