Cantonese speakers tend to say 'chongliang' rather than 'xizao' for bathing.
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冲凉 is strongly associated with Cantonese (粤语) and southern Chinese usage (广东, 广西, 香港). In standard Mandarin, 洗澡 or 冲澡 are the preferred terms. Outside southern China, 冲凉 may sound regional or informal.
