chest-high ball

Chest or Head Jump off one leg and cradle the ball comfortably to your chest.

胸前或眼前球单脚跳起,把球自然地抱在怀里.

The ball struck him full on the chest.

球恰好打在他的胸口上。

He gets dressed in a long gown ， red shoes and a red silk sash with a silk ball on his chest. The groom kneels at the ancestral altar as his father puts a cap decorated with cypress leaves on his head to declare his adulthood and his family responsibilitier.

他穿上长袍和红鞋子，胸前别上一个红绣球，然后跪在宗庙的供案前，由他的父亲为他戴上有柏枝装饰的新郎帽，并宣布他已成家立业。

The example seen here is a "tension" pneumothorax shifting the mediastinum, because a "ball-valve" air leak is increasing the air in the right chest cavity.

图为张力性气胸，因呼吸时活瓣样的结构使气体漏入到胸膜腔的越来越多，纵膈移位。

To practice it, try to inflate your stomach as you breathe in, while keeping your chest relatively still& imagine a beach ball inflating in the space between your belly button and your spine, pushing your tummy out.

正确的训练方式是：吸气时保持腹部鼓起，而保持胸部相对静止不动，想象你的肚脐和脊椎之间有一个大型充气球正在膨胀，正在把你的胃推出去。