n.改变，变化，更改，改动

原形：alteration复数：alterations

Mary's pants need some alteration.
玛丽的裤子需要改一下。
An indefinite alteration had come over Eric's whole person and manner.
埃里克整个的人和态度已经有了一种说不出的变化。
The tailor made an alteration to the waistline of the dress, making it fit more comfortably.
（裁缝对裙子的腰围做了修改，使它穿起来更舒适。）
The interior designer suggested a few alterations to brighten up the living room.
（室内设计师提出了一些建议来改变一下，让客厅更加明亮。）
Due to unforeseen circumstances, there has been an alteration in our flight schedule.
（由于一些不可预见的情况，我们的航班时间表有所更改。）
The historical building underwent significant alterations to convert it into a modern art gallery.
（这座历史建筑经过重大改造，变成了一个现代艺术画廊。）
The new policy allows for slight alterations to the original project proposal.
（新政策允许对原项目提案进行细微调整。）
After trying on the suit, he requested a minor alteration to the sleeve length.
（试穿西装后，他要求对袖子长度做一点小修改。）
The script went through several alterations before the final draft was approved.
（剧本在最终稿被批准之前经历了多次修改。）
The alteration in weather patterns has affected agricultural practices worldwide.
（天气模式的变化影响了全球的农业实践。）
The fashion designer is known for her unique ability to make stunning alterations to vintage clothing.
（这位时装设计师以其独特的能力著称，能对复古服装做出令人惊叹的改动。）
The city council approved the alteration of the zoning laws to encourage commercial development in the area.
（市议会批准了对分区法规的修改，以促进该地区的商业发展。）