Question

sustain 【SUSTAIN】The large columns sustained the weight of the roof. 这巨大的柱子支持屋顶的重量。【重点词汇】sustain v. 支持 同: maintain

Accepted Answer

[sə'steɪn] 
sustainlengthen or extend in duration or space
Sustain means to support something or keep it going. If you get hungry in the mid-afternoon, you might try snacking to sustain your energy through dinner.
Beams and rafters sustain a roof––they keep it up. If you sustain a conversation over the course of hours, you keep it going during that time. If you sustain an injury, it means you are injured. If you sustain an interest in what you're studying, it means that you're just as excited about the subject after studying as you are when you began.
All forms of 'sustain' will appear on average once every 154 pages.sustainsustainablesustainedsustainersustainmentsustenancesustainabilityself-sustainedself-sustaining

Front	sustain
Pron	[sə'steɪn]
Back	【SUSTAIN】 The large columns sustained the weight of the roof. 这巨大的柱子支持屋顶的重量。【重点词汇】 sustain v. 支持同: maintain
Vocab	sustainlengthen or extend in duration or space Sustain means to support something or keep it going. If you get hungry in the mid-afternoon, you might try snacking to sustain your energy through dinner. Beams and rafters sustain a roof––they keep it up. If you sustain a conversation over the course of hours, you keep it going during that time. If you sustain an injury, it means you are injured. If you sustain an interest in what you're studying, it means that you're just as excited about the subject after studying as you are when you began. All forms of 'sustain' will appear on average once every 154 pages. sustain sustainable sustained sustainer sustainment sustenance sustainability self-sustained self-sustaining

Sustain Means Sə'Steɪn Large Columns Sustained Weight Roof