| 释义 |
op·por·tun·is·ticBrE /ˌɒpətjuːˈnɪstɪk/NAmE /ˌɑːpərtuːˈnɪstɪk/ adjective(disapproving) = opportunist [only before noun] (medical 医学) harmful to people whose immune system has been made weak by disease or drugs 机会致病性的（对免疫系统差的人有害）◆an opportunistic infection 机会性感染 |