... P&ID 管道仪表图 PA 飞行员助手 PABX 专用自动交换分机 ...
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飞行员和肯尼迪的助手罹难，肯尼迪的背部和几根肋骨骨折。
The pilot and a Kennedy aide were killed, and Mr. Kennedy's back and several ribs were broken.
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他问飞行员的一个助手。
He asked one of the pilot's assistants.
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