If one of your goals is to lose weight, you will also need to change how and what you eat.

VOA: special.2010.06.08

Well, first it is important because it's-- you need to track what the population is eating and also individual intake.

说它重要首先是因为,你需要探寻人们都吃什么,还有个体摄入量

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Yeah, but I think it's also an important skill. You need to be able to express what you know

难，但是我也觉得这是一种重要的技能。你必须能够把你知道的表达出来，

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And also be well-informed as to what you need to do and the steps you need to take

对于你要做什么，要采取什么步骤，你都要保持消息灵通，

想成为明星吗？ - SpeakingMax英语口语达人