They shut their shells immediately after detecting " dangerous" water.

一旦检测到水源发出“危险”信号，河蚌会立即合上蚌壳。

Based on this, the researchers selected eight clams at a time and recorded the natural opening of their shells.

基于此，研究者们同时选择了八只河蚌进行试验，并且记录其蚌壳自然开。

With sensors stuck onto their shells, the clams are connected to a system that records how wide the shells are open.

蚌壳上粘贴传感器将河蚌与记录蚌壳开程度系统连接到一起。

I can get enough shell to make it worth while to fish for it, and, who knows? I may find pearls.

我想用这艘船打蚌壳，准能把买船钱赚回来。谁能说准，我也许真会获一些珍珠呢。

As we release more carbon dioxide, and the ocean's pH continues to decrease, animals that make shells like clams and oysters will struggle.

随着我们排放出更多二氧化碳，以及海洋 pH 续下降，如蛤蛎与牡蛎等会制作出蚌壳生物将会难以生存。

It is, after all, the dab of grit that seeps into an oyster's shell that makes the pearl, not pearl-making seminars with other oysters.

说到底是一颗沙铄落人蚌壳才长成了珍珠，而不是一群蚌开会讨论结果才长出了珍珠。

If four or more clams close their shells at the same time, an alarm will be triggered and the water supply will be shut down.

如果四只及以上河蚌同时合上蚌壳，就会触发警报，同时切断水供给。

" Three fingers do not bend, " complained Tagganaro, between mussels. " What good is a cutpurse who cannot use his fingers? Narbo was good at picking pockets, not so good at picking whores" .

" 三根手指无法弯曲，" 塔甘纳罗在吞食蚌壳间隙抱怨，" 一个不能用手指贼顶啥用？纳博挑选要摸口袋很在行，挑选婊子可不怎么样。"

" Now, " he answered. " Beyond these walls you will find the hundred isles of Braavos in the sea. You have been taught the words for mussels, cockles, and clams, have you not" ?

" 现在，" 他回答，" 去神庙之外。布拉佛斯是海中上百岛屿，你已经学会怎么说蚌壳、扇贝、蛤蜊，对不对？"