他的发现，“银版照相法”，于1839年公布。

His discovery, the "daguerreotype," was announced in 1839.

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他为这么晚才发现这“如此美妙的发明”感到遗憾，但还是学习了银版照相的课程，并委托他人拍摄和收集照片。

Regretting that "such a wonderful invention" had arrived so late in his lifetime, he still took lessons in daguerreotyping, and both commissioned and collected photographs.

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“你会发现富有的父母会为孩子购买最新的‘升级版’，导致生活中已有的不公愈演愈烈。”旧金山遗传学中心主任玛西·达诺夫斯基告诉英国广播公司新闻。

"You could find wealthy parents buying the latest 'upgrades' for their children, leading to even greater unfairness than we already live with," Marcy Darnovsky, director of the San Francisco Center for Genetics told BBC News.

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Unfortunately, knowing what the clean version--knowing what the word is means to me the clean version is not very clean.

很遗憾,在知道了和谐版的歌词之后,我发现和谐版也不怎么和谐

耶鲁公开课 - 心理学导论课程节选

Okay. This is only the first mention of Galileo in the poem and, as you will see if you're careful in looking at your footnotes in the Hughes, appears two other times within the later similes in the poem, always in a simile.

这只是此诗中第一次提到伽利略，如果认真读的话，会发现更多,特别是在休斯版的脚注里，在后面的比喻里伽利略又出现了两次，他总是出现了比喻里。

耶鲁公开课 - 弥尔顿课程节选

Now for the hacker edition, if you are feeling up to a bit more of a challenge you'll find that when you run the game, one it's not all that hard to use some ASCII art just make it a little fancier as the teaching fellow who implemented this solution did.

对于升级版，如果你能应付更大的,挑战，你会发现当你在玩这个游戏时，用一些字符画把它做得,比那些教学人员做的更有新意,并不是那么困难。

哈佛公开课 - 计算机科学课程节选