各位大侠，帮忙看看这几句话该怎么说

coweiliangUID: 195905

追求真理的不屈精神是M魅力的基石，铸就了M钢铁般的意志。（M为人名简写）



对艺术情感的狂热，身体疾病的痛苦，使凡高经常陷入精神病的深渊

另外还有
一氧化氮; 提供良好的投资环境; 售后服务; 旧路的扩建和新路的修建工程

peripateticUID: 198920

追求真理的不屈精神是M魅力的基石，铸就了M钢铁般的意志。（M为人名简写）
err...

对艺术情感的狂热，身体疾病的痛苦，使凡高经常陷入精神病的深渊
Passion for arts and somatic painfulness suffered from diseases always drive Vincent(?) into the vast abyss of phrenetic. (ok...i know phrenetic is an adj., but can't think of a better way...)

另外还有
一氧化氮;
Nitrogen Monoxide;
提供良好的投资环境;
provide a desirable investment condition;
售后服务;
after service;
旧路的扩建和新路的修建工程
the reconstruction of the former road and the construction of the new one.

coweiliangUID: 195905

我觉得精神病用这个吧：psychosis你觉得这样呢？
嗯～～～ 旧路的扩建和新路的修建工程 reconstruction of the former [感觉former 不太能表现路坏了要修了的意思]roads and the [building ]of new ones
嗯～～～～～ 追求真理的不屈精神是M魅力的基石，铸就了M钢铁般的意志。（M为人名简写）
The perseverance in the pursuit of truth is the fundermental element of M's charm, the very character that  made him a man of iron.