问题标题:
accustomoneselftodoing为什么是youmustaccustomyourselftogettingupearly.而不是youmustaccustomyourselftogetupearly
问题描述:

accustomoneselftodoing

为什么是youmustaccustomyourselftogettingupearly.而不是youmustaccustomyourselftogetupearly

邵姚定回答:
  这里to是介词,介词后面跟动词ing形式.
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