英语标点符号问题,
我写的一个句子,看一下我说的地方用什么符号符合英语标点符号的convention
主语gave me an anchor in a sea (of blahblah一堆乱七八糟修饰,无视之),a sea that's mightier than blahblah and fathomless like blahblah.
主语gave me an anchor in a sea (of blahblah一堆乱七八糟修饰,无视之)：a sea that's mightier than blahblah and fathomless like blahblah.
中间我是该用逗号好呢,还是破折号呢,还是冒号呢,