They were performing a short extract from Shakespeare's TwoGentlemenofVerona.
他们正在表演莎士比亚戏剧《两位维罗纳绅士》中一个简短的片段。
《柯林斯英汉双解大词典》
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The TwoGentlemenofVerona is a comedy that many believe was Shakespeare's first play. The play is also notable for its themes of friendship and infidelity.
The playwright also refers to dizziness and vertigo in The Taming of the Shrew, while breathlessness is described in at least 11 instances including in TwoGentlemenofVerona.