As diatoms have shells made of silica they are protected from copepods and so are more likely to die without being eaten and thus take take their carbon to the ocean floor.

因为硅藻有着能够保护他们遭到饶足类动物食用的壳，因此他们能够带更多的碳到海底。

youdao

Ruben: You told me two days ago that you'll never die in an aircraft, what is it that makes you feel protected?

两天前你曾对我说你绝不会死于空难，是什么让你觉得受到保护呢？

youdao

Taking cylinder nut-protected bolt, one of the cup-shaped parts in the forging parts of DF7C gas engine, as an example, the warm extruding is researched, accordingly, the forming die is designed.

以DF7C型内燃机车锻件中的杯形零件之一——气缸螺栓保护螺母为例，进行温挤压工艺研究，并据此设计出了成形模具。

youdao

"Town centres must be protected if they're not to die, " he said.

BBC: Chippenham Vision chief resigns over supermarket row

Many older people, who typically die during outbreaks of flu, were protected as they had been exposed to the virus decades before.

BBC: Swine flu infected 'fifth of people'