beat the air

基本解釋

His speech merely beat the air as his argument was not convincing at all.
他的演說一點用也沒有，因為他的觀點不令人信服。
And the gander opened his strong wings and beat the air with them to show his power.
說完，它張開自己的大翅膀拍打著周圍的空氣，以此來表示自己有多么強大。
blog.sina.com.cn
large calm lakes there too, in which white swans were swimming, and beat the air with their wings.
木中還有靜靜的湖，湖里還有游泳著的白天鵝，它們在拍著翅膀。

But perhaps most importantly, after a two-year break, you achieved that very first goal you set at the start of every season: You beat Air Force, you beat Army, and lugged this 170-pound trophy back to Annapolis.
WHITEHOUSE: President Obama Presents the Commander-in-Chief Trophy
As it stands, Klipsch's G-17 Air is the current AirPlay-enabled soundsystem to beat at its price point.
ENGADGET: Klipsch Gallery G-17 Air soundbar review
Its four carbon fiber and foil wings beat up to 20 times per-second, propelling it through the air as if it were swimming rather than flying.
ENGADGET: BionicOpter dragonfly drone flutters about, blows minds