陈先生解释说：“昨天，我先用右手试了半天，没有办法；我用左手试，还是没有用。

Mr Chen explained "Yesterday I tried with right hand but failed, then left hand still didn't work."

youdao

陈先生解释说：“昨天，我先用右手试了半天，没有办法；我用左手试，还是没有用。

Mr Chen explained "Yesterday I tried with right hand but failed, then left hand still didn't work."

youdao