1.Dad's as happy as a sandboy since he retired, pottering in the garden or sorting out his collection of stamps.
自从父亲退休后,他在花园养花弄草,或整理他收集的邮票,生活过得非常快活。
2.Dad is as happy as a sandboy since he retired.
父亲退休后的生活过得非常快乐。