唯一的要求是你选的题目必须与你的研究科目有关。
The only stipulation is that the topic you choose must be related to your studies.
学生必须选这两个系中的一个。
无论哪一位赢得胜选，都必须与几乎平分的国会相互合作—无党籍人士在国会上下议院将拥掌握制衡力量。
Whoever wins will have to work with an almost evenly divided congress-in both houses independents will hold the balance of power.
上亿的中国网民必须在中国互联网的最流行的聊天软件和最热卖的杀毒软件之间二选其一。
Hundreds of millions of Internet users must choose between China's top Internet chat programme and its best selling Internet security tool.
如果必须要选一个的话，我认为睡眠少一些反而比睡的过长更有利。
If you have to choose, I've found that it's better to get a little less sleep than too much.
如果必须提交数据到另一个页面，使用传统风格仍然是多数高效性能的明智之选。
No view state is posted, and no extra data is passed. If you have to post to another page, the old-fashioned approach is still going to be the most effective performance-wise.
所有的模特必须在选角团队面前做一次模拟的即兴t台秀。
All models must perform a simulated runway walk for the casting team.
但归根结底，如果我必须将我的毕生积蓄押在谁将赢得这场理论上存在的比赛上，我怎么可能放弃这个星球最炙手可热的球员而选其他人呢？
But when it comes down to it, if I had to put my life savings on who would win that theoretical match, how could I go with anyone but the hottest player on the planet?
然而，选征兵役制作为意外事故防范计划还保留着。 法律规定年纪18-25的公民必须进行登记注册，以备紧急需要时能迅速恢复义务兵役。
However, the Selective Service System remains in place as a contingency plan; men between the ages of 18 and 25 are required to register so that a draft can be readily resumed if needed.
另一个问题是因为三年制的课程安排如此紧凑，新生必须很清楚他们想要选的专业，之后严格按照专业课程的安排来学习。
Another issue is that because three-year programs are so intense and structured, freshman needs to know right away what she wants to major in, and then stick to a pretty rigid curriculum.
尽管如此，如果你必须在历史上选出十年来生存，那么21世纪的前十年是毫无争议的不二之选。
Nonetheless, if you had to choose a decade in history in which to be alive, the first of the 21st century would undoubtedly be it.
为了给韦德，波什，詹姆斯和米勒腾出足够的薪资空间，热火队必须交易出大前锋迈克尔.比斯利，比斯利是2008年NBA选秀的第2号球员。
To clear the needed salary cap space for Wade, Bosh, James and Miller, the Heat would need to trade forward Michael Beasley, the No. 2 overall selection in the 2008 NBA Draft.
勇士的内核已经确立，但是必须通过选秀和签约补强厚度。
Golden State has built a decent core, but must improve its depth via the draft and free agency.
要是必须得玫瑰，长茎的红玫瑰最贵，可以选粉红色短茎玫瑰。
If it has to be roses, stores charge top dollar for long-stemmed red, so maybe pink and short-stemmed will do.
我接着还必须一个一个的反选每一个选项，好象我有手腕综合症一样。脸书--我现在将你归为垃圾邮件发送者，将来任何你发送给我的邮件都将会被扔进我邮箱的粪粪堆里。
FB- I am marking you as a spammer and every thing you ever send me from now on gets dumped into my email doo-doo heap.
我在家说法语但在学校我们必须选英语课。我的英语很专业。
I speak French at home but we have to choice English classes at school.
另外，像MTV“打造乐团”（Makingthe Band）这样的选秀节目便举出了即使身处演艺世界你也必须努力工作的真实例证，并且你必须为高品质的产出而努力奋斗。
Additionally, shows like MTV's “Making the Band” exemplify the reality that even if you “make it” in the show biz world, you must work, and you must work hard to produce a quality high demand outcome.
两个我都不喜欢，但是要必须选一个的话，我要红的。
I like neither, but if I have to choose I prefer the red one.
接受调查者的注意事项:如果被调查者犹豫不决，无法做出抉择时，加问一句:”这是我们能够提供的所有信息了，你必须两选一，到底选谁？
Note to interviewer: If interviewee cannot choose a candidateor is vacillating, ask "If you had to make a choice based onthe information you have before you, who would you pick?"
如果必须选择杀死1人或者杀死5人，你会怎么选？
If you had to choose between killing one person or five, what would you do?
她轻蔑地瞥了一眼还躺在码头上的Dale，说：“当他跟踪我到克罗·威尔时，我终于意识到这是必然的：我们中的一个必须要死…而我选了我自己。”
She gave a contemptuous glance at Dale, still lying on the pier, and said to Loesser, "When he followed me to Crowell I finally realized what had to happen: One of us had to die... and I picked me."
“如果他想来，就必须接受我们的条件。如果没有，我们就选别人。没什么可谈的了。”据报道爵爷这样说。
"If he wants to come, he must accept our contract offer. If not we have other options in mind. We are done talking," Ferguson reportedly said.
我从不掩饰自己的感觉，我对做记者不感兴趣，甚至对新闻这一行也不太感兴趣，但是选了这条路，我必须走下去。
I never hide my feelings, I'm not interested in a journalist, or even the news is not very interested in this line, but chose this path, I must go on.
你必须冒险，别人无法告诉你选哪个，可以先祈求上帝，然后选一个。
You have to risk. There is no one else to tell us what to do. Pray to God, and just pick one.
在选择柠檬时，必须选表面光滑有光泽，黄色的。
In the choice of lemon, you must select the surface smooth and shiny, yellow.
一种商品类别不必有一样商品归属于它中（选的）但所有的商品都必须分门别类。
Product Category need not have products assigned to it, but all products must be assigned to a Product Category.
一种商品类别不必有一样商品归属于它中（选的）但所有的商品都必须分门别类。
Product Category need not have products assigned to it, but all products must be assigned to a Product Category.
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