Unless there is a sudden change of political situation, it is not accepted to execute the contract only partially.
除非有什么突然的政局变化,否则执行部分合同不能被接受。
Four days after setting out, while the Titanic was sailing across the icy water of the North Atlantic,
“泰坦尼克”起航后的第4天,它正行驶在北大西洋冰冷的海面上。