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。
The first westerner to discover these islands was an Italian explorer in 1524.
首次发现这些岛屿的西方人是一位意大利探险家,时间是1524年。