(很显然，所谓写信的人就是指的马尔科姆·博尔顿，但他否认了解信的内容或者牵扯到写了这封信。)

(this is an apparent reference to Malcolm Boulton who has denied any knowledge of this letter or involvement in its writing.)

youdao

但他们不能确定该信谁的建议——豆子含有毒农药，水中含砷，奶有三聚氰胺，似乎没有什么是可以安全食用的。

But they're not sure whose advice to trust-with poison pesticide on beans, arsenic in water, and melamine in milk, nothing seems safe to eat.

youdao

同样的，当里根从他的口袋拿出一封普通民众的信并在国家电视台当众宣读的时候，他是在演戏，但他很真诚。

Similarly, when Reagan pulled letters written by ordinary people out of his pocket and read them on national television, it was theatrics, but it was honest.

youdao

But when he crossed into Kentucky, he wrote this letter to his father.

但当他进入肯塔基州时,他在给父亲的信中这样写道

耶鲁公开课 - 美国内战与重建课程节选