pumping [pʌmpɪŋ]

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附加级

n.抽吸[动、水、空]；泵唧[送]；汲取；充[打]气，泵作用v.用抽水机汲水( pump的现在分词 )；给…打气；用泵（或泵样器官等）输送；涌出

There is a pumping station on the edge of the lake. 湖边有座扬水站。来自《现代汉英综合大词典》
He was pumping away. 他正用抽水机抽水。来自《简明英汉词典》