They are priceless, unique and irreplaceable.
它们是无价的、独一无二的，不可替代的。
They know a cohesive team composed of great communicators plays an irreplaceable role in enhancing the operational efficiency and productivity of an enterprise.
他们知道一个由优秀的沟通者组成的有凝聚力的团队对于提高企业的运营效率和生产力有着不可替代的作用。
So the real question is how critical those other phases of sleep are. Do they yield any irreplaceable benefits?
所以真正重要的是其他睡眠阶段是否有不可替代的作用？
"We're upset because they are important pieces and irreplaceable," said gallery director.
美术馆馆长表示：“我们很难过，因为这些画作非常重要，而且不可替代。”
So the reason to keep languages alive is really just because they are an irreplaceable part of our common human heritage.
所以让人继续去说那些语言的真正原因只是因为它们是我们人类共同遗产中不可替代的一部分。
They should realize that your world, your method and your life are irreplaceable.
你的世界，你的方法，你的生活。在这一点上，是不具有可替代性的。
First, by what standard had traditional journalists done such a sterling job that they were irreplaceable?
首先，在什么样的标准之下，传统记者们所做的工作才是不可取代的？
I understand that they are irreplaceable.
我明白，他们是无可替代的。
Weng Haiqin: But for a child's early years it is irreplaceable. They only have the first three years or four years. That is important for her whole life.
翁海琴：孩子最初的几年时间是不可替代的，小孩最初的三到四年时光，他们只拥有一次，这对于他们的一生都非常重要。
Brains and neurons are irreplaceable, but plants are immobile and often attacked, so they must be able to survive after part of them is eaten or destroyed.
大脑和神经无可替代，但植物无法移动，也常受攻击，在部分被吃掉或毁坏后它们还得能活下去。
They play an irreplaceable role in promoting technical improvement, increasing tax and revenue, providing job opportunities and keeping the society steady.
它们在促进科技进步、增加财政税收、扩大劳动就业、活跃市场以及维护社会稳定等方面都起着难以替代的作用。
More and more people realized the irreplaceable effect of TCM and they cannot ignore it anymore.
在越来越多的人认识到中医药无法替代的效果之后仍选择性忽视其存在，已无异于掩耳盗铃。
Although dialects play an irreplaceable role in the Chinese national vocalism, they may intervene the singing exercise in many ways.
方言虽然在民族声乐演唱中不可替代，但也对歌唱学习造成许多潜意识的介入性干扰。
Whatever form they may take, from the most traditional to the most innovative, books offer, now more than ever, an irreplaceable medium of information, critical reflection and education.
今时今日，不论是那种形式的书籍——最传统的还是最现代的，都比过去任何一个时代更是信息、批判性思考和教育不可取代的媒介。
Because of the unique structure and property of hydrophobic sols, they play an irreplaceable role in many fields.
在很多方面有着应用，憎液溶胶由于其特殊的结构、性质，使得它在生产、生活的方面有着不可替代的作用。
They are playing an irreplaceable role in the future of our country, so it is necessary that we should improve the quality of teachers.
由于学历是教师素质的重要指标之一，为了缩小同国际上小学教师的学历的差距，日益显示出小学在职教师学历提高的必要性。
They are playing an irreplaceable role in the future of our country, so it is necessary that we should improve the quality of teachers.
由于学历是教师素质的重要指标之一，为了缩小同国际上小学教师的学历的差距，日益显示出小学在职教师学历提高的必要性。
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