Tennessee's technical and community colleges will not outsource management of their facilities to a private company, a decision one leader said was bolstered by ananalysis of spending at each campus.
2017年6月六级真题（第二套）阅读 Section C
柯林斯高阶英汉双解学习词典释义
VERB
增强（信心）；鼓舞（士气）
If you bolster something such as someone's confidence or courage, you increase it.