And as an aside, those in the room who are among those more comfortable, even if we're not quite filling in blanks today, realize we will very quickly entice you with details that you don't already know.
说句题外话,你们中有一些,看起来聚精会神,实际上开小差的同学,也许我还不能对号入座,但这些人必须意识到,我会一笔带过,一些你们可能不懂的问题。
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