All new fashion starts out as a reaction against existingconvention.
所有新时尚都是从反抗现存习俗开始的。
《柯林斯英汉双解大词典》
2
One is that, by convention, the Department of Justice is expected to appeal decisions that strike down existing law.
一个是,根据规定,司法部将会对与现行法律相抵触的判决进行裁决。
3
Instead of explicitly adding a new storage area to an existing policy, you can use a naming convention for the storage areas that should be used with a given policy.