coupled engines

例句：

1. 1. The couple has been married for 20 years.
   这对夫妇已经结婚20年了。
2. 2. Their marriage is coupled with a successful career.
   他们的婚姻与一个成功的事业相伴随。
3. 3. The two countries are closely coupled in their economic development.
   这两个国家在经济发展上紧密相连。