what is the meaning of the following Idiomatic expression, " I did not see it coming" and " stabbed in the back"​

The expression "I did not see it coming" is that he/she or you didn't know something was going to happen.

The expression "stabbed in the back" could be the literal meaning or it could mean betrayed.

because he is using a description to provide evidence to support his argument.

hope this could

a compare and contrast essay is a piece of formal writing in which the author focus on the similarities between two ideas, objects, places, etc., and the differences between them. there are some aspects that the author should take into account when he/she is crafting the essay. first, the author has a clear idea of the effect that he/she wants to produce on the audience (a purpose). his/her main idea should be presented in the thesis statement in a simple but effective way which gives the audience a clear idea of the content and the direction of the essay. in addition, it is also important to focus to the similarities and differences that not only are interesting and relevant to the reader but also provide a new, impressive point of view or deeper understanding of a topic.