It expresses the movie's difficult love story between a young woman and a vampire and the battle they must prepare to fight.

VOA: special.2010.06.25

You must love loyal advisors and servants, whether they be foreigners or our own people, and spare no effort to serve the common good."

你一定要热爱俄国那些忠诚的大臣和臣民,不管他是来自外国还是国内,同时你也必须不遗余力地为公共利益服务"

耶鲁公开课 - 欧洲文明课程节选

She was misattributing her own fear as mutual attraction, " as "And I must love him."

把她自己的恐惧当成了对他的爱，“我一定爱他“

耶鲁公开课 - 心理学导论课程节选

In the end,Eddie must make an impossible decision between love and betrayal.

VOA: special.2010.03.12

You must love everything that contributes to the glory and honour of the fatherland.

你一定要热爱那些,能为祖国增添光荣和辉煌的事物

耶鲁公开课 - 欧洲文明课程节选

But even as black Baptist, I could have gone certain black Baptist and run out, because I must struggle against homophobia, and my profound love for gay brothers and lesbian sisters.

作为一个黑人浸信教徒，即使我去黑人浸信会，也会被赶走，因为我必须于恐同症作斗争，以及我对同性恋者们深深的爱。

普林斯顿公开课 - 人性课程节选

I must work here because I love this work, I love this job."

我在这里工作，一定是因为我喜欢这份工作“

耶鲁公开课 - 心理学导论课程节选

And even though it's fairly obvious what's doing that, they still misattribute that arousal to " "I must be falling in love," even with that obvious a--even with that obvious an instruction.

即使引起这些反应的原因非常明显，他们还是会产生性错觉,“以为这是爱的力量“,即使很明显，这是由于痛击实验引起的紧张。

耶鲁公开课 - 心理学导论课程节选