请输入您要查询的英文单词：
单词
opportunistic
释义
opportunistic
ADJ
/ˌɒpətjuːˈnɪstɪk/
1
an opportunistic disease or infection is one that attacks people who are already ill and who have a very weak immune system （疾病或传染病）机会性的，感染免疫力低的病人的
2
opportunist