英语词汇“beat the air”的读音、翻译、释义、用法及例句-开邑网

词汇	beat the air
释义	beat the airbeat the air1.■徒劳, 白费气力They are beating the air.他们正在做无益的事。To argue with him is like beating the air.和他辩论是白费气力。
随便看	helium mass spectrum leak detection helium-mercury direct nuclear laser helium method helium-neon gas laser helium-neon laser helium-neon laser therapy helium-neon maser helium-nitrogen-oxygen saturation diving helium-oxygen diving helium-oxygen diving telephone helium photoionization detector helium quantum magnetometer helium refrigerator helium replacement helium-rich core helium-rich star helium seal heliumshield helium shielded arc welding helium shielded welding helium ship helium spectrometer helium spectrum lamp helium speech helium star

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