封闭式扬声器 Closed enclosure
封面清楚扬 front cover clear jan
蓝牙扬声器封套 bluetooth speaker envelope
封扬
Feng Yang
以上为机器翻译结果，长、整句建议使用 人工翻译 。
这也正是扬写给当地报纸的一封信中要传达的意思，报上刚刚刊载了一系列关于在某些演习中完全模拟战斗环境的警察训练的文章。
That was the idea behind a letter Jahn wrote to his local paper, which had just run a series on police training that played up the combat-like aspects of some of the exercises.
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