A 747 was halfway across the Atlantic when the captain got on the loud speaker.
一架747客机正在跨越大西洋时，喇叭里传来了机长的声音。
The police on duty tried to shoo away the crowd by using a loud-speaker.
在值班的警员试着把人群散去，于是他使用了扬声器。
Loud back speaker and in phone call.
扬声器和大声回电话。
Loud back speaker and in phone call.
扬声器和大声回电话。
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