An estimated 3 million dogs end up in US shelters every year, according to American Society for the prevention of cruelty to animals.

根据美国防止虐待动物协会的数据，估计每年有300万只狗被送到美国的收容所。

Although this training is difficult (only 20% of dogs end up passing the program), it also helps a lot of people.

虽然这种训练很困难（只有 20% 的狗最终通过了该计划），但它也帮助了很多人。

This means more of a dog’s tongue is touching the water, so dogs end up making a bigger, messier water column before they clamp their mouths shut.

这意味着更多狗的舌头会接触到水，所以狗在闭上嘴之前最终会制造出更大、更混乱的水柱。

Pet owners can train their pets to be part of the program. Although this training is difficult (only 20% of dogs end up passing the program), it also helps a lot of people.

宠物主人可以训练他们的宠物参与该计划。虽然这种训练很困难（只有 20% 的狗最终通过了该计划），但它也帮助了很多人。