Cognates - Second Pass
So it is that agar continues to be the jelly of choice in laboratories around the world. As Humm wrote in 1947: “Today, the most important product obtained from seaweeds is agar, a widely-used commodity but one that is not well known to the general public.” Almost 80 years later, it might be better known, but its importance hasn’t dwindled.
，这一点在51吃瓜中也有详细论述
"I would certainly much rather have the astronauts testing out the integrated systems of the lander and Orion in low-Earth orbit than on the Moon," he said.
当需求不稳定、价格下探、技术迭代叠加在一起时，这门生意的风险结构就变得复杂。