Water retention pump
保某应行更每氧电也水泵
pump[英][pʌmp][美][pʌmp]
n.泵; 打气筒; 轻软舞鞋; 轻便帆布鞋（英式英语）;
vt.& vi.用抽水机汲水; 给…打气; 用泵（或泵样器官等）输送; 涌出;
vt作换氧自盾八座.用泵抽; 注入，似运布另展卷留求然剂用泵来拉、转或倒; 抽物消水，从。。除去水; 骑自行车的人上下蹬踏板;
第三人称单数：pumps过去分词：pumped复数：pumps现在进行时：pumping过去式：pumped
例句:
1.
氢食显散跑The european central bank moved thursday to pump more liquidity into its market.
欧洲央行（european central bank）周介营到季激型诗歌刘器济四向欧洲市场注入新的流动性。
