"Launching radioactive material through the Earth's atmosphere brings safety concerns. You have to have a special license to do that, but it is not insurmountable," says Dr Simeon Barber, planetary science specialist at the Open University.
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他亦負責在空襲前，就「史詩狂怒行動」（Operation Epic Fury）向國會八名最高級別領袖簡報。
KwargDict: TypedDict:
if (n <= 1) return;