While the aline was buying a souvenir,the girl called the police.while后能引导buy这个非延续性动词吗

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While the aline was buying a souvenir,the girl called the police.while后能引导buy这个非延续性动词吗


When后面不能用过去进行时,后跟短暂动作,后用一般过去时
While后很延续动作,后面一般用过去进行时
例:
Masha was cooking when the doorbell rang.
Grandma was cooking breakfast while I was washing my face this moring.