sustain maintain

sustain maintain 基本解释

维持维持

sustain maintain 用法和例句

1、Obtain Detain Retain Contain Sustain Maintain entertain The railway lines have to be constantly maintained.

维持维修保养坚持主张赡养维持的存在

重点词汇

sustain vt. 承受, 支持, 供养, 继续, 忍受, 蒙受, 证实, 准许 [电] 持续

maintain vt. 保持；保养；坚持；固执己见