点击下方单词,选择对的这个单词
点击下面链接下载与本句相关的学习资源，包括PDF教材和音频练习，方便课后复习：
1. 微生物学Microbiology is the branch of biology which is concerned with very small living things such as bacteria and their effects on people.
1. the branch of biology that studies microorganisms and their effects on humans
多通过句子记忆单词，而不是单独死记硬背。
