Adjectives should always use de 的 after the word, as in shūfu de 舒服的, regardless of how it's used. true or false

dramatic irony is your answer  

they have a third less land and than the rest of china

bts =

bangtan boys

bangtan sonyeondan

bulletproof boy scouts

방탄소년단

防彈少年團

it can be both; depending on the situation at hand.

explanation:

let's just say i get in to a confrontation with someone, and they say "ur mom", it could be seen as an insult. or depending on the relationship or comfortability with the person it may be seen as a joke. the distinct line is how the chemistry behind the confrontation.