branch out 

英汉解释

v. 长出枝条；扩展范围；偏离主题

同义词

v. broaden，diversify

反义词

v.   narrow，narrow down，specialise，specialize

参考例句

1. First Jack collected coins;then he branched out and collected stamps.
杰克开头只集硬币，后来又有所发展，也集邮了。
2. When he was satisfied that he was ready to branch out , he wrote Archibald.
当他相信自己已准备好了去深造的时候，就写信给阿奇博尔德。
3. Some people branch out from their main job to take on consulting work or teach a course in their field.
有些人从主要工作中扩展范围进行咨询或教授领域内课程的工作。

英英解释

v.
  1. vary in order to spread risk or to expand

网络释义

branch out
拓展业务; 长出枝条; 使…分支出来; 扩充范围;
smaller roots branch out
分生出小根;
branch out into
把规模扩大到...方面;
branch cut-out
分路断流器;
branch out in
把规模扩大到;