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.
Defining Rhyming Couplets. You may have encountered Shakespeare's Weird Sisters and these lines from the play Macbeth : 'Double, double, toil and trouble; Fire burn and cauldron bubble.'. These famous lines are an epic example of a rhyming couplet. As you may have surmised from the name, rhyming couplets are two lines that rhyme, but they also often have the same meter, or rhythmic structure in a verse or line.