Ject对"unclear" 的正确翻译：adj. 不易了解的, 不清楚的, 含混的。发音：['ʌn'kliə]。例句参考：The real cause of the riot is unclear, but the occasion is the arrest of two men. - 骚乱的真正原因不明, 但起因是由于逮捕了两名男子。；The real cause of the riot was unclear, but the occasion was the arrest of two men. - 骚乱的真正原因不明, 但起因是由於逮捕了两名男子.；