| 释义 |
maintainmaintain /meɪnˈteɪn/ ●●○ S3 W3 AWL verb ETYMOLOGYmaintainOrigin: 1200-1300 Old French maintenir, from Latin manu tenere to hold in the hand VERB TABLEmaintain |
| Present | I, you, we, they | maintain | | he, she, it | maintains | | Past | I, you, he, she, it, we, they | maintained | | Present perfect | I, you, we, they | have maintained | | he, she, it | has maintained | | Past perfect | I, you, he, she, it, we, they | had maintained | | Future | I, you, he, she, it, we, they | will maintain | | Future perfect | I, you, he, she, it, we, they | will have maintained |
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| Present | I | am maintaining | | he, she, it | is maintaining | | you, we, they | are maintaining | | Past | I, he, she, it | was maintaining | | you, we, they | were maintaining | | Present perfect | I, you, we, they | have been maintaining | | he, she, it | has been maintaining | | Past perfect | I, you, he, she, it, we, they | had been maintaining | | Future | I, you, he, she, it, we, they | will be maintaining | | Future perfect | I, you, he, she, it, we, they | will have been maintaining |
► well maintained The house has been well maintained. ► poorly/badly maintained a poorly maintained factory ► maintained their innocence During their trial, the brothers maintained their innocence (=continued to say they were not guilty). ► maintain life The goal is to build a space station that can maintain life on Mars. THESAURUS to keep happening, existing, or doing something without stopping► continue to keep happening, existing, or doing something without stopping: Dry weather will continue through the weekend. It’s important to continue your education. ► keep (on) doing something to continue to do something or to happen, especially in a way that you do not want, like, or expect Keep is a little more informal than continue: The rescue workers kept on working through the night. We thought it was going to get warmer, but it keeps getting colder. ► last to happen for a period of time: The doctors said the infection might last a month. ► go on continue to happen or to do something, especially for a long time: The play seemed to go on for hours. The two women went on talking as if Gayle wasn’t there. ► persevere formal to continue trying to do or practice something difficult: She was tired of climbing, but she knew if she persevered, eventually she would reach the top. ► endure formal if something good endures, it continues for a long time: We’ve had our problems, but our friendship has endured. ► persist formal if something bad persists, it continues. You can also say that a person persists in doing something when this is annoying: The pain persisted, so Manny went to the doctor. I didn’t want to answer her question, but she persisted in asking me. ► maintain formal to make something continue in the same way as before: Though they now live in different cities, they have maintained close family ties. ► sustain formal to make something continue to exist or happen for a long time: It’s unlikely the economy will be able to sustain this level of growth much longer. 1MAKE something CONTINUE [transitive] to make something continue in the same way or at the same level or standard as before SYN keep: Our main wish is to help maintain peace. Dieters should try to reach and maintain a reasonable weight. Our company has maintained close business ties with China for over 20 years. King lives in Chicago, but maintains an apartment in New York.► see thesaurus at continue2TAKE CARE OF something [transitive] to take care of something so that it stays in good condition: His first job was installing and maintaining computers. It’s hard to do this job and still maintain a marriage. The house has been well maintained.poorly/badly maintained a poorly maintained factory3SAY [transitive] to strongly express your belief that something is true: maintain (that) He maintains that the authorities were not involved in the killings. During their trial, the brothers maintained their innocence (=continued to say they were not guilty).4PROVIDE MONEY/FOOD to provide someone with the things he or she needs to live, such as food or money: the basic costs of maintaining a family The goal is to build a space station that can maintain life on Mars.5NOT LOSE CONTROL [intransitive] spoken to deal with a difficult situation without losing control: Cox said he and his wife, Chrissy, were “trying to just maintain.”[Origin: 1200–1300 Old French maintenir, from Latin manu tenere to hold in the hand] |