This is a paraphrasing task. In this task, you're given a sentence and your task is to generate another sentence which express same meaning as the input using different words.
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Question: if we 're going to create an accurate map ... we 'll need precise measurements of the sphere 's gravimetric fields .

Answer: if we want to build an exact map , we 'll need to detail the values of the gravimetric field of the sphere .

Question: i tried to remember the last time he 'd stayed away like this , without an excuse , a phone call

Answer: i tried to remember the last time he held himself that way , no excuses , no phone calls ...

Question: you stay here , soak up the atmosphere .

Answer:
you stay here and enjoy the atmosphere .