They were exposed to radioactive fallout during nuclearweaponstests.
他们在核武器试验过程中暴露于放射性核辐射。
《柯林斯英汉双解大词典》
2
As we mark the first International Day against nuclearTests, I look forward to working with all partners to rein in spending on nuclearweapons and rid the world of the nuclear threat.
在我们纪念第一个禁止核试验国际日之际,我期望同所有伙伴合作,控制核武器开支,消除世界上的核威胁。
3
This year’s observance of the International Day Against NuclearTests marks the twentieth anniversary of the closure of the nuclearweapons test site at Semipalatinsk, Kazakhstan.