ADJECTIVE | VERB + DENSITY | DENSITY + VERBADJECTIVE➤high, low高密度;低密度▸➤average平均密度◇an average density of 2.4 people per hectare每公頃 2.4 人的平均密度➤population, traffic人口/交通密度◇The population density in this city is very high.這座城市的人口密度很高。➤bone骨密度VERB + DENSITY➤calculate, determine, estimate, measure計算/確定/估計/測量密度▸➤increase增加密度▸➤reduce減小密度DENSITY + VERB➤change, vary密度改變/變化▸➤increase, rise密度增加/升高▸➤decline, decrease, fall密度下降/減少/降低