This normally happens in the facial area. Very often a blood vessel that has burst is easily visible, as the blood vessel is situated under a transparent layer of skin. These blood vessels can either be bright red or dark in appearance. The burst blood vessels can cause pain, if they come in contact with anything.
A couplet is a pair of lines of metre in poetry. Couplets usually comprise two lines that rhyme and have the same metre. A couplet may be formal (closed) or run-on (open). In a formal (or closed) couplet, each of the two lines is end-stopped, implying that there is a grammatical pause at the end of a line of verse.
Definition of Couplet. A couplet is a successive pair of lines in a poem. The pair of lines that comprise a couplet generally rhyme with each other and contain the same meter. Couplets are either closed, which is to say that both lines are end-stopped, or open, which is to say that there is enjambment involved and the meaning of the line runs on past the end of the line.