简答题As idioms are bound to a specific cultural group, there is no correspondence between idioms in two different languages.简答题Since human perception of colors is similar, the connotations of colors in languages do not differ a lot.简答题For the same taboo subject, euphemisms in different languages share semantic similarity.简答题The connotation of a number word is conventional and culturally bound.简答题Cultural factors such as history, literature and religion can relate to the specificity of idioms; but since natural environment is a physical factor, it bears no relevance to idioms .