rack up是什么意思？

Now your phone can help you rack up savings all over town!现在你的手机能帮你在全镇到处省钱了!Rack up directly on the cement foundation, non - embedded I - beam .机架直接放在水泥地基上, 不预埋 工字钢.The home team rack up fifty point in the football game....

rack up的音标：rack up的英式发音音标为：[ræk ʌp]rack up的美式发音音标为：[ræk ʌp]...