The video has become an invaluable teaching tool.

录像已经成为非常有用的教学手段。

柯林斯例句

The props kayaks, bungee cords, belay ropes are seen as a diversion rather a teaching tool.

小艇道具 、 高空绳索 、 确保绳索等被视为是种消遣娱乐,而不是种教具.

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In addition, surgeons can use to plan surgeries before conducting and use as a teaching tool.

另外, 外科医生能够应用这种模型来设计手术,并且用于指导手术和教学.

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