中文解释一下就是在句尾加吗，表示疑问。
英文句子可以写成：Does my sister and I go to school by bike?
原句是这样的。
my sister and I go to school by bike.
do you and your sister go to school
by bike?
你好!
我和妹妹骑自行车上学吗？
Do my sister and I go to school by bike？
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