Although negotiators are optimistic, the details are complex enough that they may be hard-pressed to get a deal at all.

然谈判代表持乐观态度，但协议细节如此复杂，他们所面临的困难很可能使他们无法取得一致。

they do not realize that they are deprived of the necessities of life.

却没有意识到被剥夺了生活所必需的东西。

Some years ago an American psychiatrist named William Dement published experiments dealing with the recording of eye-movements during sleep.

前些年，美国一位精神病学者发表了一篇报告，报告中记录了眼球在睡眠时的活动情况。

For nearly three and a half centuries she lay at the bottom of Stockholm harbour until her discovery in 1956.

这艘大船在斯德哥尔摩港口的海底躺了将近3个半世纪之后，直到1956年才被发现。

Parents would be greatly surprised and deeply touched if they realized how much belief their children usually have in their character and infallibility,

那么家长会大为吃惊和深受感动的，如果家长意识到孩子们通常是多么相信家长的品行和绝对正确，

no crowd or movement in which he may take comfort,

找不到伙伴和活动使自己得到安逸。