再发一个如何练习carving的：
BASIC CARVING
Experience:
Students are able to perform basic and dynamic skidded turns on groomed,
blue terrain.
Exercise Goal:
Students will make basic carved turns in both directions on well groomed
green or easy blue terrain.
Safety considerations:
There is often a tendency for students to lean too far into the turn and
reach for the snow which can cause a loss of balance and lead to falls and
injuries especially to wrists.
Movement Concepts:
The instructor should emphasize
