Certainly, no homework should be assigned that students cannot complete on their own or that they cannot do without expensive equipment.
当然，不应该给学生布置无法独立完成或没有昂贵设备就无法完成的作业。
人短不了水。
鱼没有水是不能活的。
But Britishers cannot do without it.
但英国人却离不开它。
The manager cannot do without a secretary.
经理没有秘书不行。
The Net has become something we cannot do without.
我们已经离不开网络了。
Abstract: It suits, nature cannot do without a tie.
摘要：正西装，自然离不开领带。
Quite plainly, the Earth cannot do without its ocean.
很显然，地球没有海洋不能生存。
A man of life cannot do without sports and exercises.
一个有生命的人离不开运动。
The progress of mankind cannot do without those people.
人类的进步真实需要这些人的。
Deep into the bones of love, that is cannot do without.
深到骨子里的爱，那是离不开。
I think there are some facilities that we cannot do without.
我认为与有许多必须提供的设施。
Human beings cannot do without something to look forward to.
人，是绝不能没有盼头的。
Since the bosses cannot do without profit, workers have an edge.
因为老板不能没有利润，工人们就占了优势。
It cuts what we can't afford to pay for what we cannot do without.
提议的预算削减我们无力支付的项目，省下钱来支付不能没有的项目。
The theory I bring forward is that he cannot do without the profane.
我提出的理论则是，人不能没有凡俗。
It's just like a telephone or fax number which we cannot do without.
这就像电话或者传真号码，我们不能没有。
The shaping of moral character cannot do without the practice of moral education.
道德品质、道德人格的形成离不开道德实践。
Therefore, we should realize that in learning English we cannot do without a dictionary.
例︰所以，我们应该了解学英文不能没有字典。
They are the ones that we cannot do without because it is they who make life interesting.
我们不能没有他们，因为他们使我们的人生充满乐趣。
Furthermore, the use of agricultural machinery for large scale single cropping cannot do without oil.
另外，大规模单一化种植对机械的要求也间接要求石油的供应。
Abstract: For preschool children to learn Musical Instruments, cannot do without the technology learning.
摘要：对于学龄前儿童学习音乐，离不开乐器演奏技术的学习。
All sorts of function treatment to the accounting information system cannot do without mathematical algorithm.
会计信息系统中的各种功能处理离不开数学算法。
But regardless of its higher price, the humble garlic clove remains a commodity that Chinese customers simply cannot do without.
但是，无论它的价格有多高，着普通的大蒜瓣依然是中国消费者离不开的商品。
Now, many digital logic systems cannot do without computer aided design CAD, especially the VHDL Hardware Description Language.
数字逻辑系统的设计离不开计算机辅助设计CAD工具的帮助，尤其是VHDL硬件描述语言。
Now, many digital logic systems cannot do without computer aided design CAD, especially the VHDL Hardware Description Language.
数字逻辑系统的设计离不开计算机辅助设计CAD工具的帮助，尤其是VHDL硬件描述语言。
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