这些句子得意思是啥,求解 Can you tell me if it's polite to eat with your arms or elbows on the table in America? Yes,I can,It's impolite. Do you know whether or not it's impolite to smoke during a meal in France? Yes,I do.It's impolite. We know people use a spoon and a fork to eat in Thailand. Do you know whether they use knives? Yes,I do.They don't use them. I know Indians eat with their right hands.I don't know if there's no need for knives,forks or chopsticks. No ,there's no need.