carve的过去式怎么变化

　　carve例句分享

　　I picked up a piece of wood and started carving.

　　我拿起一块木头，开始雕刻起来。

　　She carved up the meat and gave each of us a piece.

　　她把肉切成块，分给我们每人一块。

　　The wood had been carved into the shape of a flower.

　　木头雕成了花朵状。