a.  可替代的；另外的；两者择一的

a.  非传统的，另类的

n.  可供选择的事物

• alternative ways/approach/methods 

  其他办法

• alternative energy  替代能源

• alternative lifestyles  另类的生活方式

• alternative medicine/therapies 

  非西方传统医学/疗法

• Many of the reductions over the past 30 years have been achieved either by reducing the amount of sugar, salt or fat in a product, or by finding an alternative ingredient.

  可替代成分

• Penny-pinching UK consumers choose cheaper products from discounters such as Aldi and Lidl rather than luxury alternatives. 奢侈的同类产品

• So when I apologize, I usually choose in-person first, or a phone conversation as my top alternative. 首选

• Have you any alternative suggestions ?

  你有没有别的建议？

BrE /ɔːlˈtɜːnətɪv/

NAmE /ɔːlˈtɜːrnətɪv/