He got a nasty knock on the head.

他头部遭到重重一击。

《牛津词典》

Be careful you don't knock your head on this low beam.

小心，别把头撞在这矮梁上。

《牛津词典》

Having suffered a head injury on United's summer tour of the United States and a knock to his shin against Chelsea last week, Hernandez is now back on the treatment table with a dead leg.

小豌豆已经是接连受伤，不仅在曼联的美国夏季巡回赛中头部受创，还在上周对阵切尔西时筋骨受伤，如今又带着腿伤重返伤兵名单。

youdao

The only worry for the Warriors was the injury to Phelps, who was stretchered off after receiving a nasty-looking knock to the head.

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Murray has undergone an ankle x-ray, which has revealed no fracture, while Hook suffered a knock to the head and will undergo further assessment.

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Scrum-half Mike Blair, who missed Saturday's game after suffering a head knock against the All Blacks, may be back in contention if he comes through a series of medical checks.

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