Unless a large explosion sends radioactive material high into the atmosphere, most of the fallout from Japan will not make it across the Pacific Ocean.

除非发生了大爆炸，将放射性物质送入高层大气，否则日本产生的放射尘是不会越过太平洋的。

youdao

Unless a large explosion sends radioactive material high into the atmosphere, most of the fallout from Japan will not make it across the Pacific Ocean.

除非发生了大爆炸，将放射性物质送入高层大气，否则日本产生的放射尘是不会越过太平洋的。

youdao