我现在英语学到了概念第四册47课,现在遇见了三句非常难的句子现在急需要大家帮我解答下!(1)Economy is one powerful motive for camping, since after the initial outlay upon equipment, or through hiring it这句话书上翻译为,因为除了开始时购置或是租借一套露营装备外!请问这里的 through 什么意思呢??起什么作用后面用是动词ing(2)Idealists have objected to the package tour, that the traveller abroad thereby denies himself the opportunity of getting to know the people of the country visited.这句话书上翻译为,理想主义者像反对旅行社安排一切的一揽子旅游一样反对露营的作法，说这种封闭的作法使到国外旅游者失去了了解所去国家人民的机会。denies himself the opportunity of getting to know the people of the country visited主要是这句提别难denies是否定的意思,getting to know the people of the country visited这句实在不搞不动前面有动词know后面也有个动词visited难道是定语从句,整个是什么意思呢???(3)Only good scouting is likely to preserve the freedoms so dear to the heart of the eternal Boy Scout.这句话书上翻译为,只有优良的童子军活动才能保持不朽的童子军所衷心热爱的各项自由。 the freedoms so dear to the heart of实在搞不懂什么意思,既有介词to又有介词of这样的用法第一次见到!