not least困难

Psychologists have been interested in this [question] for decades, not least because people’s widespread [reluctance] to ask for help has led to some high-profile failures.

几十年来，心理学家一直对这个{{1}}很感兴趣，尤其是因为人们普遍{{2}}求助，已经导致了一些备受瞩目的失败。

(48) One possibility was that they merely used their eyes and tried out the plants they found, but that would probably result in a lot of wasted time and energy, not least because their eyesight is actually not very good.

（48）一种可能是，它们仅仅靠眼睛观察，并尝试所发现的植物，但这很可能会浪费大量时间和精力，尤其是因为它们的视力其实并不好。