青云翻译

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Thanks for the invite, but I'm sorry I can't come, chemistry exam on Thursday, because I've got to learn.

Thanks your invitation, but was unfair to me not to be able to come, because of me had for Thursday chemistry test study.

Thank you for the invitation, but I am sorry I have to, because I have to Thursday chemical examination of learning.

Thanks for the invite, but I'm sorry I can't come, chemistry exam on Thursday, because I've got to learn.