他的两条大腿后侧略感刺痛。
编辑器会左右两侧用红色标记标明验证错误，并给无效的语法加一条红色波浪型的下划线。
The editor will mark the validation errors with red marks on the left and right sides, and add a red wavy underline to the invalid syntax.
她侧着身子坐在车里，先用手抬起一条腿，然后又抬起另一条腿。
Sitting sideways in the car, she lifted one leg with her hands and then the other one.
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