绿藻以淀粉的形式储存食物，陆生植物也是如此，它们的细胞壁由纤维素构成，与陆生植物的细胞壁组成相似。

Green algae store food as starch, as do land plants and have cell walls made of cellulose, similar in composition to those of land plants.

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但是科学家说，我们的宇宙并不是由星星组成的，而是暗物质构成的。

But scientists say most of the universe is composed not of stars but of dark matter.

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这份单独详细的分析是由那些来自克隆动物和它的后代的奶和肉的构成成分组成的。

Detailed independent analyses were made of the composition of milk and meat from cloned animals and their offspring.

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It is very interesting to me because it's a discrete invention that happened in a point of time in response to information technology.

我觉得很有意思,因为它由许多组成部分构成,这些部分组合在了一起,而且都和信息技术有关。

耶鲁公开课 - 金融市场课程节选

She was awarded tenure in 1938, denied a professorship for 18 years, and when she presented her Ph.D thesis she was the one that determined that the sun is made dominantly of hydrogen, not ion, the way most of the old goats thought.

她是在1938年被授予长期聘用资格，拒绝接受教授职位18年，她在她的博士论文写到,她就知道,太阳主要是由氢组成的，不是那些老教授认为的那样它是由离子构成的。

麻省理工公开课 - 固态化学导论课程节选

This is a picture that I showed you before, but basically tells you something that you already know, that humans are made up of organ systems, organs and organ systems, those organs are composed of tissues.

这张图我给你们看过,简单的说明了一些常识,即人体由器官系统构成,器官和器官系统,其中器官由组织组成

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