| 释义 |
pre-existBrE /ˌpriː ɪɡˈzɪst/NAmE /ˌpriː ɪɡˈzɪst/ verbpresent simple - I / you / we / they pre-exist BrE /ˌpriː ɪɡˈzɪst/ NAmE /ˌpriː ɪɡˈzɪst/present simple - he / she / it pre-exists BrE /ˌpriː ɪkˈzɪsts/ NAmE /ˌpriː ɪkˈzɪsts/past simple pre-existed BrE /ˌpriː ɪkˈzɪstɪd/ NAmE /ˌpriː ɪkˈzɪstɪd/past participle pre-existed BrE /ˌpriː ɪkˈzɪstɪd/ NAmE /ˌpriː ɪkˈzɪstɪd/ -ing form pre-existing BrE /ˌpriː ɪɡˈzɪstɪŋ/ NAmE /ˌpriː ɪɡˈzɪstɪŋ/ [I] to exist from an earlier time 早先存在；在先出现◆a pre-existing medical condition 宿疾▸ pre-existent BrE /ˌpriː ɪɡˈzɪstənt/NAmE /ˌpriː ɪɡˈzɪstənt/ adjective |