调查显示她在出现症状的两天之前曾到菜市场购买鸡肉和鸡蛋。
The investigation indicated that she visited a wet market to buy chicken meat and eggs two days prior to symptom onset.
它是什么时候开始的?大概两天之前。（注意时态）
两天之前，公司宣布它已经在加州公路上测试过一个自动驾驶电动车。
Two days ago the firm announced it had tested a self-driving electric car on Californian highways.
就在两天之前，连姆·尼森从加勒比海打来电话，在假期快要结束的时候。
Just two days before that, Liam Neeson called from the Caribbean, at the end of a holiday.
这张便条正面朝上放在吸墨水纸上， 注明的日期是两天之前。
The note, face upward on the blotter, was dated two days earlier.
在一两天之前，我想外出去游荡，那位美丽小姑娘，她坐在我身旁。
A day or two ago, I thought I'd take a ride, And soon Miss Fannie Bright was seated by my side.
造成1,800人死亡，新奥尔良大部分地区被水浸泡的卡特里娜飓风五周年两天之前，他们发表了该评论。
The comments come two days before the fifth anniversary of Katrina which killed 1,800 people and left most of New Orleans under water.
就在奥巴马陈词的两天之前，米特·罗姆尼——共和党两位主要竞选者之一，向所有共和党候选人公布了迄今为止最详细的一份经济计划。
Two days before Mr Obama's speech, Mitt Romney, one of the two main Republican contenders, released what is so far the most detailed economic plan of any Republican candidate.
他不禁忆起仅仅在两天之前，在他一路辛辛苦苦地沿着这同样的途径走来时，他是多么地周身无力，气喘吁吁，走不上两步就要停下来喘上一口气。
He could not but recall how feebly, and with what frequent pauses for breath, he had toiled over the same ground, only two days before.
两天之前，法国突击队也采取行动，解救「迦太基月神号」（Tanit 如图）上被当作人质的四位法国同胞，包含一个三岁小男孩，不过一位人质Florent Lemaçon已遭枪杀。
Two days earlier, French commandos had also been in action. They freed four of their compatriots, including a three-year-old boy, held hostage aboard a yacht, the Tanit (pictured above).
我仍然可以感觉到“桔红色”资源——步骤3——是一个潜在的瓶颈，所以我在潜在的瓶颈之前安排了两天缓冲时间。
I still feel that the orange resource — Step 3a — is a potential bottleneck, so I schedule a two-day buffer before the potential bottleneck.
在产生这些病毒的临床样本采集之前，这两名患者接受了两天奥斯他韦治疗。
Both patients had been on treatment with oseltamivir for two days before the clinical samples that yielded the viruses were taken.
如果你不能鼓起勇气上门访问，在你去上门之前两天留给对方一个门上悬挂牌。
If you can afford it, leave a door-hanger two days before you go door-knocking.
他回英国是否因病而推迟还不清楚，但是他昨日午时被救护车送住医院之前，已在家休养两天。
It is unclear whether the illness delayed his return to Britain but he spent two days at home before an ambulance was called to take him to hospital at lunchtime yesterday.
山姆：考虑一两天，星期三之前回答我好吗？
Sam: Think about it for a day or two. Can you give me an answer by Wednesday.
他在地铁演奏之前两天，Joshua在波士顿一座剧场的演奏会的票全部售光，平均票价100美元。
Two days before his playing in the subway, Joshua Bell sold out at a theater in Boston and the seats average $100.
在2009年之前，我最后一次见到Emily是在她生日两天前。
The last time I would see her — until 2009 —was two days after her birthday in early October.
每个人两天里做的测试是多过两次的，并且这些人在参加测试之前都会注射一种胃饥饿素(从胃里释放出的一种饥饿激素)，或者是盐水。
Each person took the test twice over two days and beforehand received either an injection of ghrelin, a hunger hormone that is released by the stomach, or a shot of saline as a control.
在去之前，我会写信给我住在黄山的同学，如果她有空闲就抽两天的时间陪我游览黄山，我喜欢了解现在黄山居民的生活状况。
I would suggest that if it were possible, she should spend two day with me visiting the Huangshan. I would really like to find out how the local people live in the Huangshan today.
“慈善捐助是否被有计划的合理的应用仍然被深度质疑”，在晚宴之前的前两天，一位应约者这样告诉我。
"There are still serious doubts if philanthropic donations could be put to good use, as intended," an invitee told me two days ahead of the dinner date.
她说，他们已在廊曼机场住了两天，在齐腰深的洪水退去之前，他们不会返回。
She says they have been living in the airport for two days and will not return until the waste-deep waters recede.
北约领导人在葡萄牙为期两天的峰会上做出共同承诺，美国和其他联军部队将在2014年年底之前在阿富汗转为扮演辅助性角色。
NATO leaders emerged from a two-day summit in Portugal with a common commitment that U.S. and other allied forces will have moved into a support role in Afghanistan by the end of 2014.
在巴黎举行的为期两天的会议于星期五结束。这个会议旨在让17个排放二氧化碳的主要国家达成协议，在2009年之前起草一份新的气候变化条约。
The two-day Paris conference, which ended Friday, aimed to reach agreement among 17 major carbon-dioxide emitting countries on drafting a new climate change treaty by 2009.
这令我感到很奇怪，我自问这两天没有没有什么反常，更没有发脾气，唯一不同的是，我不像之前一天打几个电话给他罢了。
It makes me feel very strange, and I asked myself these two days is not nothing unusual, nor temper, the only difference is that the day before, I do not hit him a few phone calls to Bale.
或者，为了确保汽车可以满足我们的所有要求，在决定购买之前我们是不是也可以试驾一两天呢？
Or test drive a car for a couple of days to ensure it fulfills all our motor vehicle requirements before committing to it's purchase?
我的父母只是在我们举行简朴的小小婚礼之前两天赶来，见了一下加里。
My parents came and met Gary just two days before our small, simple wedding.
我的父母只是在我们举行简朴的小小婚礼之前两天赶来，见了一下加里。
My parents came and met Gary just two days before our small, simple wedding.
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