To get permission to film, the crew relied on anthropologist Niobe Thompson,one of the few westerners to have worked with the people here.為取得拍攝許可只能求助于人類學家尼俄伯·湯普森，他是在當地工作的為數不多的西方人之一

rely on:依靠, 信賴

They have to rely on the river for their water.

他們用水只好依靠這條河。

You can't rely on his assistance.

你不能指望他能幫助你。

work with:與 ... 共事

It was a privilege to work with him.

和他在一起工作是一項殊榮。

We can set to work with a light heart.

我們可以輕松地開始工作。

the team soon learn that the border guards remain twitchy about foreigners with cameras.隊員們很快發現這里的邊防戰士對持有攝像機的外國人十分警惕

learn :得知

I must learn to snatch at every chance to meet him.

我必須學會抓住一切機會同他見面。

A mountaineer must learn to stand the gaff.

一個登山運動員必須學會吃苦。

know, learn, comprehend, understand這些動詞都含“懂、知道、明了”之意。

know普通用詞，多指通過學習、經驗或他人傳播而得到知識，含直接知道的意味。

learn通常指通過他人而獲得消息或情況，側重從不知到知的變化過程。

comprehend側重熟悉了解的過程。

understand指對事物已有徹底的認識，不僅知其性質、含義和細節，而且了解其內外的關系。