/səˈsteɪn ||; səˈsten/verb[T] 1 to keep sb/sth alive or healthy 维持（生命或健康）: Oxygen sustains life. 氧气维持生命。
2 to make sth continue for a long period of time without becoming less 使长时间持续或保持: It's hard to sustain interest for such a long time. 要维持这样长久的兴趣是件难事。
3 (formal 正式) to experience sth bad 遭受，经历（不好的事）: to sustain damage/an injury/a defeat 受到损害；受伤；遭受挫败