thick layer短语²²⁴⁹⁰ 基本例句 厚厚的一层 Their month- old leftovers sport a thick layer of fur in the company fridge. 他们每个月的剩果皮都堆满了公司的冰箱。 hjenglish Yet, as is so often the case in public health, when one thick layer of morbidity and mortality begins to thin, it reveals more starkly another critical problem. 然而，正如公共卫生中常见的情况，当一个方面的发病率和死亡率开始下降，就会暴露出更加令人震惊的另一个方面的重大问题。 who