表现出的兴趣一定要是真实的。
为了增强自尊心，你设定的目标一定要是你能够达到的。
In order to build up your self-esteem, the targets you set should be within your reach.
如果Hiccup 冒着危险去和这条龙做朋友，那它一定要是世界上最可怕的巨龙。
If Hiccup was going to take a risk and befriend a dragon, it had to be the most frightening dragon in the world.
虽然线可以作为边，边却不一定要是线。
While a line can serve as an edge, an edge doesn't necessarily have to be a line.
放松时，一定要是真正的放松。
然而，超类(父类)不一定要是抽象类。
However, super classes (parent classes) do not have to be abstract classes.
镜片一定要是黑色的么？
我将来的老公一定要是一个有教养的人。
稍后您将发现，此处的有效载荷并不一定要是XML。
一定要是必要的真理。
他可以不是最好的，但一定要是最适合你的。
礼物不一定要是对象。
有时他会听到我说：“难道她一定要是犹太人吗？”
和那些创业神话相反，并非一定要是工作狂才能成功。
Contrary to myth, you don't need to be a workaholic to start a successful business.
而且一定要是新钱，红包的钱数要是一个特定的数字。
The money must be in new bills, and the total amount must be an even number.
你的工作伙伴不一定要是你工作之外的最好的朋友。
Your work Pal doesn't have to be your best friend outside of work.
喷漆枪带一定要是全新的，以免油漆在枪带中受到污染。
Spraygun belt must be new in order to avoid the pollution of the paint in the gunbelt.
结婚，不一定要是你最爱的人，却一定是最适合你的人。
Marriage, not necessarily if you love the people, but it must be the most suitable for you.
你通过你接触的人来改变世界，不一定要是朋友或者家人。
You change the world through the people you touch, but it doesn't have to only be friends and family.
注意你思考，表达，书写时所用的词语，他们一定要是积极的。
Pay attention to the words you think, say or write. Use only positive words.
但这种URL一定要是活动的，就是点击可以到达你得网站的。
However, this URL must be activities that can arrive you have to click on the site.
认为生活是不公平的只是一种感知，而不一定要是你生活的方式。
Thinking of life as unfair is only one perception, and it is not necessarily the way your life is.
它们不必一定要是大规模或是已经完成的，才能让其他人觉得有趣。
They don't have to be large or finished in order to be interesting to other people.
自己能让自己更快乐- - -而且，这不一定要是一个长远抱负。
You can make yourself happier - and this doesn't have to be a long-term ambition.
看到这些，巴克明白了：必须顺从一个手持棍棒的人，而此人并非一定要是朋友。
Buck understood that a man with a club must be obeyed, although he did not have to be a friend.
看到这些，巴克明白了：必须顺从一个手持棍棒的人，而此人并非一定要是朋友。
Buck understood that a man with a club must be obeyed, although he did not have to be a friend.
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