Their guns are equipped with a special device that emits laser beams each time a Marine pulls a trigger.
VOA: standard.2010.04.06
It was implanted into the first patient, a gentleman in Kentucky, and he stayed alive for a period of time with this device replacing his heart.
第一个植入这个人工心脏病人是,住在肯塔基州的一位先生,他在移植手术后,存活了一段时间
We talked about it last time, a rhythmic device.
我们上次说到过,一个节奏技巧
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