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Kim first saw the need of the book ［when she began helping Korean students at her school ［after they had just arrived in the country］］ 這句中是不是when引導(dǎo)的時(shí)間狀語(yǔ)從句中又包含了一個(gè)after引導(dǎo)的時(shí)間狀語(yǔ)從句？

謝謝，辛苦了。