n.出渣，出钢，出铁；v.开发( tap的现在分词 )；（从容器等）汲取（液体）；割[打]开…取[放]液体；轻拍，轻敲 英英释义： tapping[ 'tæpiŋ ]n.the sound of light blow or knock"he heard the tapping of the man's cane"