街沟中淤积着污物。
有一天，人们看见一个有名的心不在焉的老师在路上走，他的一只脚一直踏在街沟里，另一只脚踩在人行道上。
A notoriously absentminded professor was one day observed walking along the street with one foot continually in the gutter, the other on the pavement.
有一天， 人们看见一个众所周知的心不在焉的教授在路上走， 他的一只脚一直踏在街沟里，另一只脚踩在人行道上。
A notoriously absent-mined professor was one day observed walking along the street with one foot continually in the gutter, the other on the pavement.
有一天， 人们看见一个众所周知的心不在焉的教授在路上走， 他的一只脚一直踏在街沟里，另一只脚踩在人行道上。
A notoriously absent-mined professor was one day observed walking along the street with one foot continually in the gutter, the other on the pavement.
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