第 224句
【句子展示】
He asserted, also，that his power to follow a long and purely abstract train of thought was very limited, for which reason he felt certain that he never could have succeeded with mathematics.
【句子分析】、
单词短语：
follow a…train of thought：进行长时间…思维
【句式结构】
He asserted, also，that his power to follow a long and purely abstract train of thought was very limited（宾语从句）, for which reason he felt certain（非限定性定语从句） that he never could have succeeded with mathematics（宾语从句）.
【参考译文】
他还坚持认为自己进行长时间纯抽象思维的能力十分有限，由此他也认定自己在数学方面根本不可能有大的作为。
