cofounder

例句：

1. 1. He is a cofounder of the company and has been instrumental in its growth.
   他是该公司的共同创始人，对它的发展壮大起到了关键作用。
2. 2. The cofounders are still close friends after many years apart.
   这些共同创始人多年后仍然非常亲近。
3. 3.The cofounders were able to secure funding from investors despite the challenges they faced.
   尽管面临挑战，共同创始人还是成功从投资者那里获得了资金支持。