I can't understand __________.A.what does Chrismas mean B.what Chrismas means.

前面有I can't understand ,所以后面的就是句子后的成分,要用陈述句语序了所以直接what Chrismas means.,而不是疑问句语序what does Chrismas mean .如果没有前面的I can't understand ,就是what does Chrismas mean...那是不是宾语从句后面的从句都要跟陈述语序啊？一般来说 是的。