gōng chéng shī / zài / āo àn / xiū jiàn / hù pō / yǐ / jiǎn shǎo / hóng shuǐ / duì / dī àn / de / qīn shí

工程师在凹岸修建护坡，以减少洪水对堤岸的侵蚀。

The engineers built a protective slope on the concave bank to reduce flood erosion of the embankment.