Chinese students showed a gradual improvement in physical fitness as 33percent were evaluated as being in good shape in 2020 compared to 26.5 percentin 2016.
as…as 在这句话中干什么成分？
能否剖析一下这句话〜
主句：Chinese students showed a gradualimprovement in physical fitness
中国学生的身体素质逐步提升
缘由从句：as 33 percent were evaluated as being ingood shape in 2020 compared to 26.5 percent in 2016
由于2020年有33%的学生被评为身体情况好，而2016年为26.5%。
在这个从句中，第一个 as 引导缘由状语从句。第二个as是介词，搭配是 be evaluated as（被评估为）。过去分词短语comparedto...作方法状语，意为“与......比起来”。