他有脑震荡，头上的伤口缝了几针。
He had a concussion and needed some stitches for his head wound.
他们让我躺下来，检查是否有脑震荡的迹象并预防我休克，消防队长也用无线电叫来了救护车。
They had me lay down and checked for concussion and treated me for shock. the fire chief had a radio so he dispatched an ambulance immediately.
那些没有留在座位上系好安全带的乘客，有可能会撞上服务推车、座椅扶手或天花板，撞断自己的髋骨、手臂、鼻子，甚至有脑震荡的危险。 此类状况已有先例。
Those not securely strapped into their seats can, and have, flown into galley carts, arm rests or the ceiling, breaking hips, arms and noses and risking concussion.
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