这种变幻以前曾经发生过。
我们以前曾经常吃零食。
他们发现，冰川向前流动的速度比以前曾经观察到的流速更快。
They found it was marching forwards at a greater pace than a glacier had ever been observed to flow before.
但是，他也认为，印度企业以前曾经显现出在必要时刻转型的能力。
But, he says, India's IT firms have shown before that they can change if they really need to.
罗塔岛以前曾经被日本统治过，这个遗迹就说明了一切。
Rota had previously ruled by Japan, the remains of says it all.
当您试图确定以前曾经发现过的问题时，可以对这些文档进行搜索。
These documents can be searched when trying to identify previously-discovered issues.
我们以前曾经邀请过中国朋友来吃饭，但这一次却大不相同。
We had invited Chinese friends to eat with us before, but this dinner was going to be different.
如果你以前曾经手工实现过表单验证，你会认为这三行代码很有价值。
If you've ever implemented forms authentication by hand, you'll appreciate these three lines of code.
你认为美国有富人(或以前曾经富有的人)被迫大幅削减支出的事吗？
Do you think there are rich (or formerly rich) people in the U.S. being forced to cut back dramatically on spending?
如果这个习惯你以前曾经尝试改变过(有这种可能的)，但是失败了。
If you've tried this habit change before (odds are you have), you've likely failed.
你认为美国有富人(或以前曾经富有的人)被迫大幅削减支出的事吗？
Do you think there are rich (or formerly rich) people in the U. S. being forced to cut back dramatically on spending?
莎莉：是的，我会找吉儿，以前曾经找过的女孩，但是我需要能过夜的人。
SALLY: Yes, I'd ask Jill, the girl I've had before, but I need someone overnight.
或者，您可以修改一个以前曾经从数据库中读取的一个现有的行，如清单6 所示。
Or you can modify an existing row that had been read previously from the database, as in Listing 6.
默克尔的基民盟党以前曾经讨论过在学校、法院等公共场所禁止蒙脸面纱。
Merkel's CDU party has previously discussed banning them in schools, courts and other public buildings.
阿尔伯达省，出产加拿大三分之二的石油和天然气，以前曾经历过这种情况。
Alberta, which produces two-thirds of Canada's oil and gas, has been here before.
研究人员以前曾经认为，在约38亿至40亿年前，火星上有过水，可能还有过生命。
Researchers had previously thought that there was water - and possibly life on Mars - around 3.8 to 4 billion years ago.
她忽然想起以前曾经站在同一个地方，就在史塔克公爵丢掉脑袋的那一天。
It came to her suddenly that she had stood in this very spot before, on the day Lord Eddard Stark had lost his head.
对番木瓜过敏的病人，或以前曾经注射过木瓜凝乳蛋白酶的人，化学核溶解法是禁忌证。
Chemonucleolysis is contraindicated in patients who are allergic to papaya or who have previously been injected with chymopapain.
一百多年以前曾经重建过一次，后来又进行过多次修缮，才有现在的面貌。美。
It was rebuilt one hundred years ago and has been through many processes of restoration.
到2005年，他希望会有一半的新房子建在以前曾经开发过的所谓棕色地带上。
By 2005 he wants half of all new houses to be built on previously developed land: so-called brownfield sites.
当你让头脑思考关于金钱的事时，它将要给你的是你以前曾经经历过的与钱有关的事。
When you ask the mind to think about money, it's going to give you whatever you previously have experienced with regard to money.
她提到Michael以前曾经做了很多慈善工作，询问发生了什么事使得他来到监狱。
She reminds him that he did a lot of charity work and asks what could have happened to land him in Fox River.
这一系列关于XML设计的文章中，以前曾经讨论了在元素和属性间做出选择的一般原则。
Earlier in this series on XML design, I discussed principles for choosing between elements and attributes.
我们都知道，我们在网上发的任何东西都有可能被老板看到，这一点我们以前曾经讨论过。
We all know that just about anything we post online is fair game for employers to check out, as we've posted about before.
“我是谁”这个故事的目的应该是向你的成员们透露一些你的缺点或你以前曾经犯过的差错。
Your goal with a "Who I Am" story should be to reveal some type of flaw about yourself or mistake that you've made.
那天晚上，我和客人爬进一辆微型汽车，准备共进晚餐之后再去观看一场演出，这种演出我以前曾经看过多次。
That evening my Chinese companion and I climbed into a minibus to go to dinner and a show, one which I had attended many times before.
他被带到这里来以前曾经给带到另外一个地方，那大概是个普通监狱，或者是巡逻队的临时拘留所。
Before being brought here he had been taken to another place which must have been an ordinary prison or a temporary lock-up used by the patrols.
造一只二三百吨的大船，固然需要花很大的劳力，但是移民们觉得以前曾经成功过，因此很有信心。
It is true that the construction of a ship of from two to three hundred tons would be great labor, but the colonists had confidence in themselves, justified by their previous success.
每个人都知道，如果以前曾经见过面并且建立起某种类型的联系的话，打电话同别人沟通是最容易的了。
Everyone knows how much easier it is to speak to someone on the telephone, if you have met them before and established some kind of previous connection.
每个人都知道，如果以前曾经见过面并且建立起某种类型的联系的话，打电话同别人沟通是最容易的了。
Everyone knows how much easier it is to speak to someone on the telephone, if you have met them before and established some kind of previous connection.
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