s below the surface of the pool for observers and television cameras。
Diving Techniques 跳水技术：
A basic dive has four distinct phases： the starting position； the take…off； the in…flight maneuvers； and the entry into the water。 Divers learn each of these components by repeating the dive or skill over and over。 Divers also use skill progressions to learn more difficult dives。 They first master simple skills such as feetfirst jumps before learning body positions； alignment； somersaults； and twists。 These complex skills are often taught on dry land using special equipment such as trampolines combined with safety harnesses that can suspend the diver in the air with ropes。 Foam pits that cushion landings from low springboards are also used。
Approach跑台、走板：
Three or more steps a diver takes to the end of a springboard or platform before take…off。
Take…off起跳：
A diver's lift…off from the board。
Elevation腾空：
The height a diver achieves from a take…off。