In fact, as was revealed years later, animal training for spying purposes was a huge project at Langley.
事实上,正如多年后所揭示的那样,以间谍为目的的动物训练在兰利是一个巨大的项目。
英语百科
Animal training
Animal training refers to teaching animals specific responses to specific conditions or stimuli. Training may be for purposes such as companionship, detection, protection, and entertainment. The type of training an animal receives will vary depending on the training method used, and the purpose for training the animal. For example, a seeing eye dog will be trained to achieve a different goal than a wild animal in a circus.