球场上设置两个球门，比赛目的是把自己的球投入对方的球门，而另一方则需用身体阻挡来球。
The object of the sport is to roll a ball into the opponent's goal while the opposing team tries to block it with their bodies.
羊毛织物能留住你的身体热量，阻挡寒气。
研究人员们也探索着新的方法，加强皮肤保湿能力，并阻挡细菌渗入身体。
Researchers are also exploring new ways of boosting the skin's ability to retain moisture as well as to keep germs from seeping into the body.
医生努力让病人排出石头。如果石头太大或阻挡了排尿或有感染的迹象，就需要通过进行一种“二选一”的最低限度侵入身体的手术。
Doctors try to let the stone pass, but if it is too large, if it blocks the flow of urine or if there is a sign of infection, it is removed through one of two types of minimally invasive surgery.
不过，这并不是因为身体受到阻挡，而通常是因为她的冰箱门上的电脑显示屏告诉她一封新的电子邮件到了。
But it's not because of any physical obstruction. It's usually because the PC monitor in her refrigerators door has informed her that a new email message has arrived.
不过，这并不是因为身体受到阻挡，而通常是因为她的冰箱门上的电脑显示屏告诉她一封新的电子邮件到了。
But it's not because of any physical obstruction. It's usually because the PC monitor in her refrigerators door has informed her that a new email message has arrived.
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