The straight arm is brought around in a full circle, with the hand flat (see paddle wheel figure).
直臂划手是把手臂绕一个整圈，手平放(就像明轮的图)。
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Emily gripped her mother's arm when they were on the ferris wheel.
艾米丽在妈妈的怀里，她们一起做摩天轮。
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