1. We happiness of smiled, and carefree played, now and
painful of recollection.

我们快乐的笑过,无忧无虑的玩过,现在又痛苦的回忆。
2. The mind states are five, and are subject to pleasure or pain; they are
painful or not
painful.

精神状态从属于五种形式,快乐或是痛苦的(临界于痛苦与不痛苦的边缘)。
3. There is certainly much work which is exceedingly irksome, and an excess of work is always very
painful.

毫无疑问有许多工作是令人非常厌烦的,而且,工作过多总是十分痛苦的事。