1
two-sided + noun
作定语，修饰名词。
He used two-sided tape to mount the poster.
他用双面胶带贴海报。
可两面使用的；双面的
先理解核心含义，再看它在真实句子里的用法。
可两面使用的；双面的
able to be used on either side; reversible
He used two-sided tape to mount the poster.
他用双面胶带贴海报。
此义指正反两面都可用；不是“双边的”或“两重性的”。
有两个面,双边的。
Having two sides, bilateral.
可双面使用的
capable of being reversed or used with either side out
可逆的。
Reversible.
有两面的
having two sides or parts
This two-sided towel is soft on one side and absorbent on the other.
这条双面毛巾一面柔软，另一面吸水。
Use two-sided tape to stick the poster on the wall.
用双面胶带把海报贴到墙上。
I bought a two-sided cutting board so I can use one side for meat and the other for vegetables.
我买了一块双面切菜板，这样我可以用一面切肉，另一面切蔬菜。
作定语，修饰名词。
He used two-sided tape to mount the poster.
他用双面胶带贴海报。
作表语，表示事物具有两面性。
The argument is two-sided; both perspectives have merit.
这个论点有两面性；两种观点都有道理。
接介词in，说明在哪方面具有两面性。
This issue is two-sided in nature, requiring careful analysis.
这个问题本质上是双边的，需要仔细分析。
Not this
This paper has two-sided.
Use this
This paper is two-sided.
two-sided是形容词，不能直接作has的宾语，应使用系表结构。
Not this
This is a two sides issue.
Use this
This is a two-sided issue.
描述一个事物具有两面性时，应用形容词two-sided，而非名词短语two sides。
Choose the next layer that will help you use two-sided with more confidence.
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Dictionary facts from ECDICT, WIKTIONARY.