A man called Mao Sui volunteered.

有一个名叫毛遂的人，自告奋勇愿意同去。

The chief culprit was Mao.

主要的罪魁祸首还是毛。

Mao last appeared in public on May Day 1971.

1971年的五一节是毛最后一次在公众中出现。

Mao let it happen: he had other doctors by then.

毛任由这种事发生：他那时已经有其他的医生了。

Mao Zhaoxu: Good afternoon, ladies and gentlemen.

马朝旭：女士们、先生们，大家下午好。