a method of protecting yourself from a disease that involves staying at home and having as little contact as possible with people from outside your home, because you are at risk of becoming seriously ill if you get the disease

If you’re clinically extremely vulnerable, you’re strongly advised to stay at home as much as possible and keep interactions outside to a minimum. This is called "shielding". 如果你在临床上极其脆弱，强烈建议你尽可能呆在家里，尽量减少与外界的交往。这被称为 "屏蔽"。

People who have been given a prognosis of less than 6 months to live could decide not to undertake shielding. 被诊断为只能活不到6个月的病人可以决定不采取屏蔽措施。

the practice of keeping your body between an opponent and the ball, with your back to the other player, to prevent them from getting the ball

Shielding allows you to keep the ball but also move forward. 背身护球可以让你继续持球，但也可以向前带球。

Shielding is using your arms and body to prevent a defender from taking the ball. 背身护球是用你的手臂和身体来阻止防守队员拿到球。