When you slam, you should is carful not to hold the ball.

当你扣球时你必须小心不要持球太久.

After a carful of the painting, the artist replied, I'm afraid of that too.

艺术家仔细看过作品后回答说：“这个我也有点担心。”

After a carful study of the painting, the artist replied, I'm afraid of that too.

艺术家仔细看过作品后回答说：“这个我也有点担心。”