中文：不知到／我唔識　轉　英文：I don't know 外有否別的？

中文：不知到／我唔識　轉　英文：I don't know 外有否別的？

答案係有ge

我唔識 I do not understand
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" I haven't come a cause " 對嗎　？

應該就係錯ge

用Dr.eye釋
I haven't come a cause Dr.eye: 我沒變成一個原因

用Lingoes釋
I haven't come a cause
我未来起因。

"I have no idea."會比較常用同common。比"I don't know."較有禮貌。
而你所提出的應該是"come across", 意思是被理解；被傳達(be understood or communicated)
eg. He spoke for a long time but his meaning did not really come across.
他講了很長時間，但他的意思沒有人真正理解。
所以don't come across不能表示不知道。
比較"I don't know."同"I have no idea.", 我個人認為"I have no idea."較普遍。