lack enthusiasm

基本解释

Students lack enthusiasm in learning phonology.
学生对语音课缺乏学习热情。
However, so many people lack enthusiasm when communicating their message.
然而，许多人在与客户交流过程中缺少热情。
Students are passive knowledge receivers and lack enthusiasm in learning English actively, thus resulting in their poor ability in language application.
长期以来，我国大学英语教学模式是以教师为中心，学生是被动的知识接受者，缺乏主动学习的积极性，语言应用能力较差。

It was the first manned mission to orbit the moon. "NASA has been burdened with a lack of enthusiasm by the taxpayers."

However, as I mentioned in my prior post, the PTO generally leans pro-patents and therefore may lack enthusiasm to fix any problems that result in over-patenting.
FORBES: Two Challenges to Fixing Software Patents (Part 2 of 3)
NATO, and it would mean that American troops were less likely to be involved in peacekeeping (which the Pentagon believes dulls combat soldiers' fighting edge and for which Congress can lack enthusiasm).
ECONOMIST: Letters
Another big obstacle to reform could be a lack of enthusiasm among local governments.
ECONOMIST: The government’s plans are still something of a mystery