And there's a certain line that you must remember.

你必须记下一些台词。

I'm frustrated 课堂 - SpeakingMax英语口语达人

So, let's say they were expecting to see one certain frequency or one line in the spectrum at this point here.

比如说他们预计会看到某个特定的频率,或者在这里看到一个谱线。

麻省理工公开课 - 化学原理课程节选

The word "yellow" in the second line of Tony the Tow Truck-- its denotation is that it is a certain color, the color that Tony's garage is painted.

搬运车托尼》中第二行的“黄色“,他的表面意义就是一种颜色，垃圾箱的颜色。

耶鲁公开课 - 文学理论导论课程节选

It doesn't mean that they grew up south of the Mason-Dixon Line or wave a certain kind of flag or--but the older term for it was "stooge."

那不意味着,他们成长于梅森—狄克森线以南,挥动某种旗帜,或者-但是更广泛是“stooge“表示助手“

耶鲁公开课 - 心理学导论课程节选