骆驼非洲
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必需necessary英语读音是['nesisəri]。
adj.必要的；必需的；必然的；不可避免的迫不得已的，非做不行的，非自愿的，不自由的n.必需品必要物；必要，必须（用复数）生活必需品。
双语例句
1、They can authorize the necessary aid to a branch.
董事会可以授权给予某一个分公司以必要的帮助。
2、Voluntary Jordanian organizations will also continue to deliver the
necessary aid to our brothers in the Palestinian territories.
约旦志愿组织也将继续为巴勒斯坦领土的兄弟姐妹提供必要的援助。
3、The study therefore recommended that those countries be provided with the
necessary aid to establish remote sensing systems.
因此，该项研究建议，应向这些国家提供必要的援助，以建立遥感系统。
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必须，表示事理上的必要和情理上的必要，副词，有强调的语气，多作状语。那么你知道必须用英文怎么说吗?下面来学习一下吧。
必须英语说法1：
must
必须英语说法2：
have to
必须英语说法3：
be obliged to
必须英语例句：
我们明天必须离开，真是遗憾。
It is a pity that we shall have to leave tomorrow.
在英国，车辆必须靠左行驶。
In England traffic must keep to the left.
你从图书馆借的书上的戳记表明，这本书必须明天归还。
The stamp in your library book shows it must be returned tomorrow.
我必须找人把收音机 修理 好。
I must get the radio fixed.
孩子用的家具必须经得起拳打脚踢。
Children's furniture must withstand kicks and blows.
这个剧目播出前必须经过数次剪辑。
Before this play is broadcast several cuts must be made.
有些物品不宜用机洗，必须手洗。机洗衣物和布草必须按颜色深浅分类。
Machine washable clothes and linen must be sorted into light and dark colours.
你必须热爱助攻，也必须热爱防守。
You have to love to attack and you have to love to defend.
妇女日落后必须穿著束腹且必须要有男伴陪同。
Women must wear a corset after sundown and be in the company of male chaperone.
我们必须马上出发。
We must start at once.
你必须考虑下一步该做什么。
You have to consider what to do next.
我必须回去工作了，我一定要准备好我的下一个发言稿。
I have to go and work, I must get out my next speech.
你必须补偿我的这个损失。
You must compensate me for this loss.
我们必须节约燃料。
We must economize on fuel.
我们必须权衡一下起用新系统所需的成本和它将带来的效益。
We have to weigh the cost of the new system against the benefits it willbring.
我必须忙我自己的事。
I must go about my business.
此事你必须得到管理部门准许。
You'll have to clear it with management.
你明天什么时候必须开始照常工作?
What time do you have to go in tomorrow?
对这件事我们必须立刻采取行动。
We must move at once in this matter.
你必须按时到达那里。
You must be there on time.
我们必须在这个车站换车去巴黎。
We have to change for Paris at this station.
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