...over ;hide ;hold out on ;keep dark ;kept dark ;kept from ;kept in ;threw a veil ;threw a veil over ;thrown a veil 隐瞒真相 subreption ..
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thrown a veil
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以上为机器翻译结果，长、整句建议使用 人工翻译 。
But the veil of secrecy, and the barriers thrown up by the cold war, have meant that the Soviet half of the space race remains, by comparison, a largely unknown story.
但是由于冷战导致的壁垒，加之苏联隐秘的作风，致使前苏联太空竞赛的大半细节仍不得而知。
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