do not know sth. (Lack of knowledge.) Synon.: 唔曉. Mand.: 不懂, 不會

do not know sb./sth. (Never seen before.) Mand.: 不認識

to have a good opportunity but not know to grasp hold of it

unable to fully exploit a good opportunity

unable to read (Chinese); illiterate

to be strangers; to dismiss a remark as nonsense

(slang) to not know someone; to be strangers;

nobody knows anybody else

describes the situation where no one knows who anyone else is, where everyone is a total stranger to everyone else

illiterate

knows how to say something but not how to do it

can only complain but cannot suggest (slang)

an illiterate person

do not know something thoroughly

describes someone who is not smart enough to know how to be flexible and adapt to different circumstances, which is just another way to call someone stupid [colloquial]

illiterate [colloquial]

to be pig-headed and lacking the ability to adapt [colloquial]

describes someone who is not smart enough to know how to be flexible and adapt to different circumstances, which is just another way to call someone stupid [colloquial]

describes someone who is not smart enough to know how to be flexible and adapt to different circumstances, which is just another way to call someone stupid [colloquial]