在我告诉你另外两种情境的实验结果之前，试图猜测一下。
Before I tell you the results of the other two conditions, try to guess.
实验开始之前，所有狗都知道猫。
All of them knew what a cat was before the experiment began.
之前讲过的罗伯洞穴实验就是一个好例子。
The Robber's Cave study talked about before is a nice example.
在实验之前，我得查……，查一下线路。
之前两个实验的结局就没有这么圆满了。
之前从没有任何医疗实验测验过这种策略。
No other clinical trial had previously tested this strategy.
丹尼斯在海龟实验开始之前很早就成功了。
Dennis's success started long before he launched the Turtle experiment.
在发明电灯之前他做了大量的实验。
He had done a lot of experiments before inventing the light bulb.
在实验开始之前，量热计内、外的温度必须相同。
The temperature inside and outside the calorimeter must be the same before the experiment begins.
我们昨天离开学校之前打扫了实验室。
但在给出理由之前，先对穆勒的观点做个实验。
But before we give the reasons Let's do an experiment of Mill's claim.
当你离开实验室之前，确保灯被关掉了。
Before you leave the lab, make sure that the lights are turned off.
实验之前先将这两种物质混合起来。
到那时之前，我们的实验已经达到了一个重要阶段。
之前在动物身上做的实验已经证明会对大脑发育造成影响。
Previous research in animals found the drugs can affect brain development.
这是一种临床二期实验(aphase IItrial)，之前的实验已经显示了希望。
This is a phase II trial that builds on previous trials that have shown promise.
之前你和你的上级直接违反了实验室规定…
You and your supervisor were in direct violation of lab policy…
这句话的大体意思是：如果下雨了，在你离开实验室之前要关上门和窗户。
Before you leave the lab, the doors and Windows _shut in case of rain.
这句话的大体意思是：如果下雨了，在你离开实验室之前要关上门和窗户。
Before you leave the lab, the doors and Windows _shut in case of rain.
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