1·The Nelson campaign tried to stoke the rumors, but without corroboration or evidence.
纳尔逊竞选班子想给这些谣言煽风点火,但是他们没有确证或证据。
2·A biographer can seek corroboration elsewhere; a personal memoir does not have that advantage.
传记作家可以从别处寻找确证的事实,但一个个人的记忆没有这样的优势。