原文 http://tinyurl.com/kuznv97 The scientists noted the challenge in accessing data and creating metrics that can be compared across livestock and to potato, wheat and rice production. 請問the challenge in accessing data是什麼意思? challenge是挑戰 accessing是進入 翻成"在進入資料的挑戰"@@? 跪求強者幫忙解惑 thx~