He was bright, eager, and in excellent spirits, a mood which in his case alternated with fits of the blackest depression.

他精神勃勃，非常兴奋，足见他在这最难解问题经发现了曙光。

Long pastoral poems or songs about the four seasons by renowned poets are mostly distinguished by beautiful moving lines on autumn.

足见有觉动物，有趣人类，对于秋，总是一样能特别引起深沉，幽远，严厉，萧索来。

Professor Binns had been very old indeed when he had fallen asleep in front of the staff room fire and got up next morning to teach, leaving his body behind him.

想年宾斯教授在教员休息室壁炉前睡着了，第二天早上去上课时竟忘记带上自己身体，足见宾斯教授确实经很老了。