Ihave a  writing   exam next week.  i have to write about  the advantages  and disadvantages of something. i am worried about it. is there anyone can give me some advice ?

Answer

absence or deprivation of advantage or equality. the state or an instance of being in an unfavorable circumstance or condition: to be at a disadvantage. something that puts one in an unfavorable position or condition: His bad temper is a disadvantage.  

Difference

As nouns the difference between disadvantage and advantage

is that disadvantage is a weakness or undesirable characteristic; a con while advantage is any condition, circumstance, opportunity or means, particularly favorable to success, or to any desired end.

- "chilles is sad and angry because hector, the trojan leader, killed his best friend patroclus. he seems angry with himself because he didn't or protect patroclus against the trojans."

faith or loyalty when pledged in a solemn agreement or undertaking.