How to write 淤

淤 [yū] 名词 1. 水道被泥沙阻塞。 - The waterway is blocked by silt. - Example: 淤塞 (silted up). - Example: 淤积 (accumulated silt). - Example: 淤滞 (stagnated silt). - Example: 淤埋 (buried with silt). 2. 河沟中沉积的泥沙。 - The sediment deposited in the river ditch. - Example: 淤泥 (silt). - Example: 淤溉 (silted irrigation). 3. 同“瘀”。 - Same as "瘀" (stagnation). 动词 1. 将含有大量淤泥的河水引入低洼地，令其沉淀以改良土壤。 - To channel river water containing a large amount of silt into low-lying areas, allowing it to settle to improve the soil. 2. 例如：淤田 (introducing silt into farmland). - (Using water to introduce silt into farmland). - Example: 淤溉 (irrigating with silt-laden water to improve soil by allowing silt to settle, thus increasing fertility). 3. 滞塞，不流通。 - To be congested, not flowing. - Example: 淤涌 (silted water flow). - Example: 淤停 (water accumulated without flowing). - Example: 淤阏 (blocked; water flow not going through).