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。
Because of this, we kept looking back, wondering if we were leaving a trail of oil and petrol behind us.
因此,我们不时地掉过头,怀疑车后是否留下了机油和汽油的痕迹。