The scientists were already investigating the problem of pollution from space debris when they realised a SpaceX Falcon 9 had failed in flight.
根據澳洲廣播公司（ABC）的報導，神韻藝術團於週二向警方報告了這一威脅。
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She said for her, travelling to London is not an option.
(logging all transactions) or filling in pre-printed forms such as receipts