A small flat case with magnetic tape for audio or video

• Used to record and play back sound or pictures

装有磁带的扁平小盒，用于音频或视频

• 用于录制和回放声音或画面

Any similar small replaceable cartridge for a device

• For example, computer media or a cassette-type air conditioner unit

其他类似的小型可更换盒式组件

• 如计算机介质盒或卡式空调单元

A lightproof container for photographic film

用于胶片的防光盒

Molecular biology: a modular DNA sequence conferring a specific function

分子生物学：具有特定功能的模块化DNA序列

Bicycling: the cluster of sprockets on a freehub

自行车：安装在花鼓塔基上的后飞轮组

To record audio or video onto a cassette

把音频或视频录到盒式磁带上