predecessors
Your predecessor is the person who had your job before you.
He maintained that he learned everything he knew from his predecessor.
他坚称他所知道的一切都是从他的前任那儿学到的。
The predecessor of an object or machine is the object or machine that came before it in a sequence or process of development.
Although the car is some 2 inches shorter than its predecessor, its boot is 20 per cent larger.
尽管这款汽车比其上一代产品短2英寸,但它的行李箱大了20。