It means yes, can, and can. No means, cannot, cannot, or is wrong. The two words have opposite meanings.

Whether means right or wrong, yes or no, it expresses doubt.

Pinyin shìfǒu

Source: Chapter 22 of "The Strange Current Situation Witnessed in Twenty Years" by Wu Jianren of the Qing Dynasty: "I have never been to a foreign country, and I don't know whether his words are completely reliable. . ”

Vernacular interpretation: I have never been abroad, and I don’t know whether the truth he told is completely reliable.

Synonyms: can, can or not

1. Can, pronounced kěfǒu, can or not; can or not, yes or not.

Source: "Zuo Zhuan·The Thirty-One Years of Xianggong": Take advantage of the suitable fields with Bi Chen to see whether the plan is feasible or not.

Vernacular interpretation: Is it feasible to go to the wild areas in a car with Pi Chen and let him plan?

2. Can, pronounced néng fǒu, talented or not; can or not.

Source: "Zuo Zhuan: The Thirty-One Years of Duke Xiang": Gongsun Hui was able to know the conduct of the four kingdoms, and he could distinguish the officials' family name, rank, nobleness, ability, and ability, and he was also good at rhetoric. .

Vernacular interpretation: Ziyu can understand the political orders of the princes from all over the world and understands the family names, official titles, status, talents and talents of their officials. He is also good at rhetoric.