Definition
To suddenly disappear or become impossible to find, usually to avoid an obligation or an unwanted encounter.
不解而去，避不見面
He does a disappearing act every time he needs to pay his bills.
每次需要付帳單時，他就會突然消失。
He does a disappearing act as soon as the work gets hard.
只要工作變得困難，他就會突然消失。
She did a vanishing act when she was asked to speak at the party.
當她被要求在派對上發言時，她就突然消失了。