wave at的用法和樣例：
例句
- He saluted his friend by a wave of the hand.
他揮手向朋友致意。 - We waved good-bye to her at the airport.
我們在機場(chǎng)向她揮手告別。 - With something so important, you can't just wave a wand and presto!
在這么重大的問(wèn)題上，你想揮動(dòng)一下指揮棒，轉眼就變過(guò)來(lái)，辦不到！ - If violence returns, its people may expect Mr Obama, whose father was Kenyan, to wave his wand.
如果暴亂爆發(fā)，肯尼亞人民可能會(huì )期望父親是肯尼亞人的奧巴馬揮動(dòng)大棒施以援手。
