1·Carbolic acid is usually used for cleaning.
石炭酸常用于清洁。
—— 《柯林斯英汉双解大词典》
2·Red paper is usually used as red is connected with happiness in Chinese culture.
通常使用红纸，因为在中国文化中，红色与幸福联系在一起。
3·It is usually used to play Russian music by plucking the strings with fingers or a pick.
它常用于演奏俄罗斯音乐，演奏时可用手指或拨片来拨弦。
4·In Jiangsu and Zhejiang provinces, a clay cup is usually used to brew Longjing, Biluochun, Maojian or just green tea.
在江浙两省，人们通常是用陶土杯来冲泡龙井、碧螺春、毛尖或绿茶。
5·A mule is usually used as a pack animal.
骡子通常是被用作驮畜。
6·Some of the muscles it uses are not usually used by most of you.
它用到的一些肌肉，是你们中大部分人平时没怎么用到的。
7·It's an expression usually used with food, especially at Christmas and for the big roast dinners that we like to eat.
这个表达通常用于食物，尤其是用在圣诞节和我们喜欢吃的烤肉大餐上。
8·To truly experience the beauty of this decorative glass you should see it with light passing through it, especially sunlight, which is why stained glass is usually used for windows.
要真正体验这种装饰玻璃的美，你应该在有光通过它的时候看它，特别是在阳光通过的时候，这就是为什么彩色玻璃通常用于窗户上。
9·And (usually used together).
和(常常一起使用)。
10·It is usually used in photos, printers and press.
它通常被用于照片、打印机和印刷业。