nutrient retention的用法和樣例：
例句
- As nutrient effluents escalated, however, dense phytoplankton blooms appeared in the surface waters.
然而當流入海中的營(yíng)養鹽越來(lái)越多時(shí)，海面開(kāi)始出現濃密的藻華。 - Compared with many other eutrophic lakes with similar or even lower nutrient concentrations, phytoplankton biomass in Lake Donghu was much lower.
相對于東湖較高的營(yíng)養鹽含量，其浮游植物生物量相對較低。
