他对自己说：“你必须成功。”

He said to himself, "You have to succeed."

youdao

克里说：“我们必须成功。”

"We have to succeed," Senator Kerry said.

youdao

但我们知道它们必须成功。

We know they have to.

youdao

You can take heat energy and convert it to work energy and vice versa, and it doesn't say anything about that you have to waste heat if you're going to transform heat into work.

你可以把热能便成功,也可以反过来,但它对于如果你要把热变成功,就必须浪费热量这件事只字未提,它只是说这是能量。

麻省理工公开课 - 热力学与动力学课程节选

He carves down the forest, he begins to cultivate the land and he declares what you got to have for success in the South is "A house, some land and some niggers."

他命令奴隶们砍倒树木,他开始翻耕这片土地,同时他声称,在南方,成功就必须要有,"一栋房子,一片土地和一些黑奴"

耶鲁公开课 - 美国内战与重建课程节选