unproductive laborer

例句：

1. 1. The new manager is expected to be unproductive at first.
   新任经理最初预计会效率低下。
2. 2. The company's decision to cut back on research and development was seen as an unproductive move.
   公司决定削减研发预算，这被视为一项无效举措。
3. 3. The farmer decided to plant less productive crops this year.
   农民决定今年种植产量较低的作物。