help sb. with sth. : 帮å©æ人åæäº
ä¾å¥: I help my little sister with her homework. ææ妹妹仿å课.
help sb. on with sth. : 帮æ人穿衣æ
ä¾å¥: Can I help you on with your coat? æå¸®ä½ æ大衣穿ä¸å¥½å?
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