试制

例句：

1. 1. The engineer is trying to solve the problem with a new design.
   工程师正在尝试用新设计解决这个问题。
2. 2. This is our first attempt at creating a sustainable energy system.
   这是我们首次尝试创建可持续能源系统。
3. 3. The team conducted a trial run of their new software before releasing it to the public.
   团队在发布软件之前进行了一次试运行。