介绍:
Sure! The idiom is "a dime a dozen". It means that something is very common and not particularly valuable or special.
For example, In big cities, these kinds of trendy cafes are a dime a dozen. There's one on almost every corner.
Now, picture this: You go to a large flea market and see that there are countless generic keychains. What idiom can you use to describe these keychains?
当然！这个习语是“a dime a dozen”。它的意思是某物非常常见，没有特别的价值或特别之处。
例如，在大城市里，这种时髦的咖啡馆比比皆是，几乎每个角落都有一家。
现在，想象一下：你去一个大型跳蚤市场，看到那里有无数的通用钥匙链。你能用哪个成语来描述这些钥匙链？
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