When the coast is clear, it's back to business.

等安全了，它们就继续做正事。

Some peep out from behind their shells to check if the coast is clear.

有些从壳后探出头来检查海岸是否安全。

Now the coast is clear, and it's time to retrieve any fur from the barbed wire.

现在危险已经过去，是时候去检查铁丝网上的毛发了。

Then they can be sure that the coast is clear.

然后他们可以确定海岸是安全的。

Once the coast is clear and  their prey is spotted, they dive.

一旦海岸畅通无阻并发现猎物，它们就会潜水。

Buzz, the coast is clear. Buzz, where are you?

巴斯，安全了吗？巴斯，你在哪里？

All right, the coast is clear.

好了 畅通无阻。

First, we check to see that the coast is clear.

首先，我们要检查一下是否畅通无阻。

And a fish safely entering feeding grounds can show others that the coast is clear.

安全进入觅食区的鱼可以向其他人表明海岸是安全的。

You slowly creep down the stairs to check if the coast is clear, peering over the railing.

你慢慢地爬下楼梯， 检查海岸是否畅通， 凝视着栏杆。

Hide in the back alley till the coast is clear, and when the door opens, make a break for it?

躲进后巷 等待最佳时机，门一打开 就冲进去吗？

" Yeah, yeah, " Alex says, double-checking the coast is clear before grabbing Henry by the belt and backing into a stall.

“是啊，是啊，” 亚历克斯说， 在抓住亨利的腰带并倒回马厩之前仔细检查了海岸是否畅通无阻。

(gentle music) Scientists believe the ability to rebreathe is an evolutionary trait that the lizard developed to escape predators (scream) and stay under water until the coast is clear.

（柔和的音乐）科学家们认为，重新呼吸的能力是蜥蜴为了逃避捕食者（尖叫）并留在水下直到海岸清澈而发展起来的一种进化特征。

" So Ron—you go and head Umbridge off...Ginny, Luna, if you can start moving people out of the corridor...Harry and I will get the Cloak on and wait until the coast is clear..."

“那么罗恩——你去把乌姆里奇引开金妮、卢娜，要是你们能把人们赶出走廊，哈利和我就会穿上隐形衣，等到没有人的时候。”

But if she's " fielded" her determination not to have her yard " marred" by a " twisted" venture, she may not let that train leave the station until the " coast" is clear.

但如果她决心不让自己的院子被破坏的话，在Ben把院子打扫干净之前应该不会让他离开。