The term 'mental illness' is difficult to define.
“精神病”这个词很难下定义。
It sounds pretty silly, but it's really important because it allows you to define a thermometer and temperature.
这听起来相当白痴，但是它确实很重要，因为它让你可以定义温度计和温度。
Another option demonstrated in Listing 6 is to define a countdown time that will run until the task is executed.
清单6中演示的另一个选项是定义一个倒计时时间，该时间将一直运行到执行任务为止。
It allows you to define the concept of a thermometer. You have three objects, one of them could be a thermometer.
它允许你定义温度计的概念。你有三个物体，其中一个可能是温度计。
Zeroth law, then, allows you to define the concept of temperature and the measurement of temperature through a thermometer.
第零定律，使你可以定义温度的概念以及通过温度计测量温度。
I'm going to define what love is but the most of the experiments I'm going to talk about are really focused more on attraction than love.
我会定义什么是爱，但是我要讲的大部分实验都更关注吸引力而不是爱。
I'm going to define what love is but then most of the experiments I'm going to talk about are really focused more on attraction than love.
我要定义什么是爱，但是我要讲的大部分实验真的都更关注吸引力而不是爱。
It was simple enough, in those old days, to define with approximate accuracy when a given statement ceased to be the truth and became a lie.
在过去，要近似准确地界定一个特定声明由真理变为谎言，是很简单的。
France, which always prides itself as the global innovator of fashion, has decided its fashion industry has lost an absolute right to define physical beauty for women.
一向以全球时尚革新者为傲的法国已认定其时尚界已经失去了定义女性形体美的绝对权力。
We need to define the task ahead very clearly.
我们需要明确今后的任务。
It is difficult to define what makes him so popular.
很难解释清楚什么原因使他如此走红。
It's difficult to define the exact nature of the problem.
很难给这个问题确切定性。
It is difficult to define the border between love and friendship.
爱情和友情之间的界线难以划清。
这很难定义。
Play is easier to define with examples than with concepts.
用例子比用概念更容易定义游戏。
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