你使用翻譯<span>Nǐ shǐyòng fānyì</span>
I would say these lines illustrate a quatrain.
A quatrain is a stanza consisting of four lines, as is the case here. Shakespeare's sonnets have a specific structure - the first twelve lines are divided into three quatrains (4*3 =12); the final two lines are called a couplet, and the message of the entire sonnet can be found in those two final lines.