名词
中文翻译：Unknown
同义词：
['tape', 'transcript', 'audio', 'video', 'cassette', 'recording']
例句：
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1. Theengineer carefully recorded the sound of the machine.
工程师仔细地记录了机器的声音。
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2. Theteacher asked the students to record their homeworkbefore class.
老师要求学生们在课前记录他们的家庭作业。
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3. The recording was laterplayed at the conference.
录音后来在会议上播放。