insufficientia

例句：

1. 1. The lack of funds has made it difficult for us to carry out the project.
   资金的缺乏使我们难以完成这个项目。
2. 2.The teacher's explanation was not sufficient to answer all the students' questions.
   老师的说明不足以回答所有学生的问题。
3. 3.The company's insufficient production capacity has led to a shortage of goods.
   公司的生产能力不足导致货物短缺。