| 单词 | add-on |
| 释义 | add-onˈadd-on noun [countable] 1a piece of equipment, service, etc. that is sold or given separately from a product or service you are buying, and adds value to the product or service: add-ons such as modems and DVD drives Most travel websites offer a variety of add-ons with every vacation package.2something additional that is later added to a bill, plan, agreement, etc.: add-on to add-ons to the budget bill in the Senate |
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