Unfortunately, this is not their role on the team, and they need to know that their trying to be helpful in this way may actually be causing you to swim slower.

不幸的是，这不是他们在一个团队中该有的角色，并且他们得知道，他们用这种方式让自己变得有帮助事实上会导致你游得更慢。

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Speaking of sharks, Nyad is attempting the swim without a physical shark cage, and she is relying on an electronic shark repellent device and a team of divers to keep them away.

CNN: Diana Nyad making fourth attempt at Cuba-to-Florida swim