1.
When we speak of a basic human need we mean something which is necessary to life,
当我们谈到人的基本需要时，是指一些对生命必需的东西。
2.
Food is essential for life.
食物是生命所必需的。
3.
Food is necessary for life.
食物对生命是必需的。
4.
Oxygen is necessary for life.
氧气是生命所必需的。
5.
A vital or animating force;lifeblood.
生命、源泉维持生命所必需的力量、活力、生命液
6.
The necessities of life include food, clothing, and shelter.
生命的必需的，包括食物，衣服，住处
7.
Air and water are indispensable to life.
空气和水是生命所必需的东西。
8.
Food is necessary to maintain life.
食物是维持生命所必需的。
9.
Water is one of the materials required to sustain life.
水是维持生命所必需的物质之一。
10.
Water is of vital necessity in the desert.
在沙漠地区水是维持生命的必需品。
11.
Air, food and drink are necessary to support life.
空气、食物和水是维持生命所必需的。
12.
Water is essential for life – to drink, bathe, cook,clean, grow food, fuel engines, support ecosystems.
水是生命必需品，饮用、沐
13.
We must try to ensure that vital food supplies are maintained.
我们必须确保维持生命所必需的食物之供应。
14.
Let your boat of life be right, packed with ony what you need.
让你的生命之舟轻装前行，只载着你必需的东西。
15.
essential for maintaining the fundamental life processes.
对于维持基本的生命过程而言是必需的。
16.
The Viewpoint of Life in the Educational View: The Necessity of the Existence and Development of Education;
教育视域中的生命观:教育存在与发展之必需
17.
a survival kit,ie a package of items needed by survivors of a disaster,eg at sea
救生包（装有维持生命之必需品,如供海难等幸存者使用的）.
18.
(b) necessary to protect human, animal or plant life or health;
（b）为保护人类、动物或植物的生命或健康所必需的措施；