Tax breaks bring the cost down, especially in California, but in many states ZEHs can be prohibitively expensive.
出自-2013年6月閱讀原文
英語六級真題
McCartney found that EMI's (百代唱片) contractual clauses made it prohibitively expensive to follow suit, and the Beatles had to make do with the primitive technology of Abbey Road.
出自-2013年12月閱讀原文
柯林斯高階英漢雙解學習詞典釋義
ADJ-GRADED
（費用）高得令很多人負擔不起的，貴得讓人望而卻步的
If the cost of something is prohibitive, it is so high that many people cannot afford it.