He introduces a major conflict
Claudius anounces that he has married the widow of his late brother the King Hamlet, this is a major conflict in the play, because he then eventually murders the his brothers widow, now his wife, and that eventually leads to the his own death.
A responsibility is something you are expected to do.
A responsibility might be a task you are expected to do. For example, your parents expect you to brush your teeth. Brushing your teeth is “a responsibility” and it is your responsibility to brush your teeth every day. Another example is that your teacher expects you to finish your homework on time and to do your best job. So it’s your responsibility to do your homework and to do it to the best of your abilities.
A responsibility might be a way you are expected to act. For example, your parents expect that if you go to play at the park, you will play in a way that won’t seriously hurt yourself or someone else. It’s your responsibility to have fun in a safe and courteous way.
A myriad of emotions flooded over Dean as Corday spoke.
He finds his panacea in the concrete life of humanity.
The periodicity shows itself in the form of an exacerbation of the still continuing fever
Singers write lyrics that relate to what they are going through, and convey their emotion through the music. Writers do about the same but with stories. Producers (of movies) write the script of a movie related to what they like/are going through.