“八字脚”是一种下肢的骨骼畸形，分为“外八字脚”和“内八字脚”两种。一般“外八字脚”多见于学走路的小儿，而“内八字脚”则多见于已经会走路的小儿。
她的腿是外八字，所以希望作手术让她腿变直。
She's bowlegged and therefore wants to get a surgery to make her legs straight.
我小心翼翼地站起来，扶着墙，看着地，走着外八字，小心的滑起来。
I gingerly to stand up and embracing the wall, watching, the walk toe, carefully slip up.
当你入水的手臂稍微在肩膀延长线外时，你肩膀的活动范围会比靠近中线是大得多。(手的入水应该有点外八字)。
When your extended arm is slightly outside your shoulder line your shoulder range of motion is considerably greater than when it's near the centerline.
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