304　get one's hand in，keep one's hand in和have a hand in

① get one's hand in表示“熟练”。

Once you get your hand in，you will find it very easy. 一旦学会，你就会发现它很容易。

She spent an hour at piano every day to get her hand in. 她每天花一个小时弹钢琴，以便熟练起来。

② keep one's hand in表示“不荒废”。

He played the violin occasionally，just to keep his hand in. 他偶尔拉小提琴，以免荒废。

③ have a hand in表示“插手，参与”。

Each of them had a hand in the matter. 他们每人都参与了这件事。

He won't let others have a hand in it. 他不会让别人插手这事。