如果必要的话

It's silly to go out in the rain if you don't have to.

如果没有必要的话，冒雨外出是很愚蠢的。

But never, at any moment, imagine that the rigamarole of airport security is guaranteed to make you safer -- for no one knows which of these measures, if any, is actually necessary.

可以说任何时候从来都没有想像中的机场烦琐的安全措施能保证让你更安全，因为没有人知道哪些措施，如果有的话，其实是必要的。

Make up one's mind the minister of foreign affairs miss an opportunity make a mistake by mistake in modern times small money have no money with sb. make sb. monitor on the early morning at the top of the mountain join the navy if necessary in need of help take on a new look hit sb. on the nose make / take notes have nothing to do with put up a notice pay no notice to sb. be in operation place an order for sth.

下决心 外交部长错过机会犯错误由疏忽所致现代零钱某人身上没钱选某人为班长某一天清早在山顶上参加海军如果有必要的话需要帮助呈现一片新面貌打某人的鼻子做笔记与…无关张贴通知对某人毫不在意运转着，实施中订购某物失业了一副眼镜颐和园

Tammy, I'll shoot if I have to.

苔米，如果有必要的话我会开枪的

However, it does not mean that split is right but fighting unflinchingly against the elements, who betray the cause of proletariat and rebel against them, if necessary, is absolutely correct.

然而，这并不意味着分裂就是正确的，而只是为了同出卖无产阶级利益的修正主义进行不妥协的斗争并反抗他们，如果有必要的话，分裂是完全正确的。

I'll see how things unfold and I will ask for help if I need some.

但是，如果有必要的话，还是需要拜托他们帮忙的。

If necessary, Mr Odinga will seek to make his opposition stronghold of western Kenya ungovernable from Nairobi.

如果有必要的话，奥廷加先生将他的反对党在肯尼亚的西部据点从肯尼亚分离出去。

If you think it is nece ary .

如果你认为有这必要的话。

However, the more general discussion of the nature of law, if such discussion has any place at all, is not a comparably empirical inquiry.25

然而，关于法律性质的更为一般的讨论——如果这一讨论确实必要的话——并不是一种类似的经验性研究。

OK then, if that's what it takes...

好吧，如果那样是有必要的话。。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。