bone of contention
爭議的根源或爭議的焦點
正式/書面·描述爭議焦點
英文釋義
a subject or issue that causes disagreement or conflict
例句
The division of property became the bone of contention between the two brothers.
典故來源
源自狗爭骨頭的比喻,指引發爭吵的核心問題。