My first grammar tip is to avoid contractions where necessary.

我的第一个语法建议是必要时避免使用缩略形式。

Dominic Raab, the foreign secretary, is to stand in for him chairing cabinet meetings " where necessary" .

英国外交大臣多米尼克·拉布(Dominic Raab)将在“必要时”代替他主持内阁会议。

I'm much more interested in holistic and natural methods to keep elephants and people apart where necessary.

为了在必要地区将人和大象分开，我对整体和自然的解决方案更感兴趣。

We need to support them with full-time work and we need to protect them from liability where necessary.

我们需要用全职工作来支持他们，我们需要在必要时保护他们免于承担责任。

Break things up into concise points and, where necessary, insert subheads — as there are in this article.

将事情分解成简明的要点，并在必要时插入小标题——就像本文中那样。

Under a system of external discipline the motive power is supplied by the habit of obedience, enforced where necessary by penalties.

在外部纪律制度下， 动力来自于服从的习惯， 必要时通过惩罚来加强。

Let's have a look at some common interview questions, and I'll give you some phrases, and we'll mention grammar, where necessary.

让我们看看一些常见的面试问题，我会给你一些短语， 必要时我们会提到语法。

The episode is called " Why Your Projects Are Always Late — and What to Do About It." We've updated facts and figures where necessary.

这一集的标题是“为什么你的项目总是迟到——以及该怎么办”。我们在必要时更新了事实和数据。

Taxes upon butcher's meat are still more common than those upon bread. It may indeed be doubted, whether butcher's meat is any where a necessary of life.

对屠宰肉征税仍然比对面包征税更为普遍。屠宰的肉是否是生活必需品，这确实值得怀疑。

The World Wildlife Fund is working with local officials to produce an action plan to protect forest reserves, and to rescue rhinos where necessary to help them breed.

世界野生动物基金会正在与当地官员合作制定一项行动计划， 以保护森林保护区，并在必要时拯救犀牛以帮助它们繁殖。

Experiences of pregnancy vary widely, both within the range of healthy pregnancies and due to complicating health conditions — new research will help us understand why, and develop effective treatments where necessary.

对妊娠的体验存在着很大的差异，这既出现在健康妊娠范畴中，也由复杂的健康状况引起——新的研究将帮助我们了解其原因，并开发出必要和有效的治疗方法。

I sat down on a small dustbin, so that I could be at the same level as Will, and helped him to manageable bites of meat, shredding it with my fingers where necessary.

我坐在一个小垃圾桶上，这样我就可以和威尔处于同一高度， 帮他咬几口肉， 必要时用手指切碎。