我的理论为什么他们需要 V2 中的密钥，以便他们可以保证您已同意使用条款.根据他们的律师.然后对于 V3，Google 开发人员决定不拥有密钥，因为它确实不能保证任何事情的痛苦.所以在开发商和律师的分歧中，开发商赢了.Google 是少数可能发生这种情况的公司之一.

My theory for why they required a key in V2 was so that they could guarantee that you had agreed to the terms of use. Per their lawyers. Then for V3, the Google developers decided not to have a key because it is a pain that really doesn't guarantee anything. So in the disagreement between the developers and the lawyers, the developers won. Google is one of the few companies where that could happen.