Repairs are necessary to strengthen the bridge.
这座桥需要加固。
To improve the quality of life through work, two complementary strategies are necessary.
要通过工作提高生活质量，两个互补的策略很必要。
交换是必要的。
有两个步骤是必要的。
Two or three friends, a small tent, sleeping bags, food and drink are necessary.
两三个朋友、一个小帐篷、睡袋，还有食物和饮料都是必要的。
Both physical fitness and mental attitude are necessary factors to be a successful sportsman.
身体素质和心态都是成为一名成功运动员的必要因素。
Responsibility and reliability are necessary qualifications, as well as a friendly and outgoing personality.
责任感和可靠性是必需的素质，友善和外向的性格也必不可少。
In order to know a foreign language thoroughly, four things are necessary.
为了完全掌握一门外语，有四点至关重要。
Thus some very dangerous drugs are approved because they are necessary to treat serious illnesses.
因此一些非常危险的药物被批准，因为它们是治疗严重疾病所必需的。
These reference books are necessary to us.
这些参考书是我们所必需的。
But they are necessary, right?
不过这是必须的不是吗？
These are necessary adjustments.
这些都是必要的调整。
No other changes are necessary.
这不需要其他任何更改。
No manual configuration changes are necessary.
不需要手动修改配置。
WHAT TESTS ARE NECESSARY BEFORE LAPAROSCOPY?
腹腔镜检查前要做哪些其他必要的检查？
Both are necessary and should complement each other.
两者都是必需的，它们之间应该是相互补充的关系。
You want this life, those choices are necessary。
你要这种人生，就得做那些选择。
Backups are necessary in case you are compromised.
备份是必需的以防不测。
What kind of resources are necessary and in what amount.
何种资源是必需的，以及需要多大的量。
All are necessary for the development of complex systems.
所有的都是复杂系统开发所必要的。
These large deficits are necessary to avoid deflation.
这种巨额赤字是避免通缩所必需的。
Meetings are necessary for planning, and decision making.
为了计划和做决策，开会是非常有必要的。
On the other hand, sometimes such large changes are necessary.
另一方面，有些时候这类大的改动也会是必须的。
No extra steps are necessary for running this agent on a server.
在服务器上运行这个代理不需要其他的步骤。
Some of these interruptions are necessary and others are not.
有些干扰是必需的，其他则不是。
But before that, some social experience and clients are necessary.
但是在那之前，一些社会经验和客户是非常必要的。
Both are journalized and no third party filesystems are necessary.
这两者都是日志式系统，并且不需要第三方文件系统。
The element entities are necessary to permit domain specialization.
要允许域专门化元素实体是必需的。
A couple of quick changes are necessary to make the views read-only.
要使该视图为只读，还需要做几个快捷的更改。
A couple of quick changes are necessary to make the views read-only.
要使该视图为只读，还需要做几个快捷的更改。
应用推荐