但是，对于系统的整体或者局部软件的维护，都非常的费时费力，且常常由于人为的疏忽导致更新异常，使得系统不能正常运行。

But it costs much more time and work to finish the holistic or partial maintenance, and a mistake may cause the system working abnormally.

youdao

令我绝望的是，在这一本书，他疏忽了艺术的一局部。

To my disappointment, in this part of the book he ignores the arts.

youdao