| 释义 |
op·por·tun·is·ticBrE /ˌɒpətjuːˈnɪstɪk/ NAmE /ˌɑːpərtuːˈnɪstɪk/ adjective (disapproving ) = opportunist[only before noun ](medical医学) harmful to people whose immune systemhas 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 |