1. Our new doctor is much younger than his predecessor.
    我们的新医生比他的前任年轻得多.

2. Which a predecessor of ours at the farm built in the meadow hard by the deepest pool for swimming and diving.
    那船坞是农场一位前辈在一块草地上盖的，草地紧挨着一个专供游泳、跳水的深水池。