摘要：If yousustainsomething, you continue it or maintain it for a period of time. 保持He has sustained his fierce social conscience from
sustain [səˈsteɪn]保持；维持
(sustaining, sustained, sustains)
[V-T]If you sustain something, you continue it or maintain it for a period of time. 保持He has sustained his fierce social conscience from young adulthood through old age.他从青年时代到晚年一直保持着强烈的社会良知。Recovery can't be sustained unless more jobs are created.除非有更多的工作机会被创造出来，否则复苏无法保持下去。
sustain life：维持生命。如：Water and food are necessary to sustain life.（水和食物是维持生命所必需的。）sustain economic growth：维持经济增长。如：The government is taking measures to sustain economic growth.（政府正在采取措施维持经济增长。）sustain damage/injury/loss：遭受损坏 / 伤害 / 损失。如：The building sustained damage in the earthquake.（这座建筑在地震中遭受了损坏。）sustain an argument/a claim：支持一个论点 / 主张。如：He was able to sustain his argument with strong evidence.（他能够用有力的证据支持他的论点。）sustained：可作形容词，意为 “持续的；持久的”，如 “sustained economic growth”（持续的经济增长）。sustaining：可作形容词，意为 “维持的；支持的”，如 “sustaining power”（支撑力）。unsustainable：形容词，“不可持续的”，如 “unsustainable development”（不可持续的发展）。 来源：汝河教育
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