我今天就是没法工作。
好啦,这就是我今天做的好事。
今天是星期二,那么明天就是星期三。
But we can use equations that describe waves to describe matter, and that's what we're going to be doing today.
但我们可以用描述波的方程,来描述物质,这就是我们今天要做的。
When in 1645 Milton finally publishes that first volume of poetry, the first poem that he places in this volume is the Nativity Ode, our poem today.
当1645年出版了首个诗集,他把《圣诞清晨歌》放在最前面,就是我们今天看到的这首诗。
So here we have an example but I want to go back to the generality and to a bit of formalism.
这就是我们今天的案例了,我还是回头很形式主义地概括一下吧
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