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| VERB |
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| /səˈsteɪn/ |
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| 1 | to provide the conditions in which something can happen or exist 维持；保持 |
| Only two of the planets could sustain life. 只有两颗行星具备使生命存活下去的条件。 |
| Analysts believe present economic growth can be sustained without inflation. 分析家们认为在没有通货膨胀的情况下现在的经济增长可以持续下去。 |
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| 2 | formal to give someone strength , energy , or hope 使保持体力（或精力、希望）；支撑 |
| A cup of coffee isn’ t enough to sustain you until lunchtime. 一杯咖啡不足以让你支撑到午餐时间。 |
| Throughout the trial he was sustained by the support of his family. 在整个审讯过程中，他家人的支持使他得以支撑下去。 |
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| 3 | formal to support or prove an idea , statement , theory etc 支持；证明（想法、说法或理论等） |
| | 3a | to agree that a decision , law etc is based on good legal principles 同意（决定、法规等）正当有效；认可；准许 | |
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| 4 | formal to experience loss , injury , damage etc 蒙受，遭受（损失、伤害等） |
| One of the officers sustained minor injuries in the fire. 其中一名高级职员在火灾中受了轻伤。 |
| Both sides sustained heavy losses in the war. 双方在战争中都蒙受了巨大损失。 |
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