[文法] 介係詞不懂

[qoo27734266 (postgraduate)]

抱歉多益的句子跑來這邊問

One of Maxwell Distributor's obligation as a supplier of raw materials for
industrial plants is to deliver needed goods in a timely and efficient manner.

中間的as是當作介係詞用吧?

那介係詞前面不是應該要有動詞嗎?

She works as an interpreter in that company.

因為我看到的例句是這個 所以我才覺得多益的句子怪怪的

這邊多益的as到底為什麼會這樣用?

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推 hsheng: 介係詞前面不一定要有動詞，如She,as an interpreter,
→ hsheng: works in that company.
→ dunchee: "The Republic of China" 介係詞of前頭也沒有動詞
→ dunchee: http://www.learnersdictionary.com/definition/as
→ dunchee: 選 preposition，然後看例句。一堆as前頭不是動詞的例子
→ dunchee: 你應該是接觸的不夠，所以不熟悉的關係
→ qoo27734266: ......
→ qoo27734266: 哈哈 我沒看見
→ qoo27734266: 除了這句之外As a pacifist, I'm against all wars
→ qoo27734266: 而且他還是算兩個句子..
→ qoo27734266: 好像找不到我原文例句這個相似AS的用法
→ qoo27734266: 我確實是想要在英文上找到邏輯的初學者