out of practice   (TTS發音)

unable to do sth. well because of lack of practice久不練習；荒疏She is out of practice，so she can't sing as well as before. 因久不練習，她歌唱得不如以前好了。

    He used to be good at cricket，but now be's out of practice. 他過去擅長于打板球，可現在已荒疏了。