additional document

例句：

1. 1. We need to add some additionalingredients to the recipe.
   我们需要在食谱中加入一些额外的成分。
2. 2. The company has addedseveral new products to its line-up.
   该公司已经增加了几个新产品到其产品线中。
3. 3. The extra workload is causing someemployees to feel overwhelmed.
   额外的工作量让一些员工感到压力过大。