帮忙分析一下动词不定式在句中充当的成分
1.Doesthisdisabilitymakeitdifficultforthemtodosomethings?
2.Ihadtostopandresthalfwayupthestairs.
3.Iusedtoclimbtrees.
4.Justacceptthemandgivethemencouragementtoliveasrichandfullalifeasyoudo.
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