come-along

基本解释

If you simply inherit a class and don't do anything else, the methods from the base-class interface come right along into the derived class.
如果你只是简单的继承一个类而不做其他的事情，那么这个基类的方法便会顺延到衍生类中。
Twenty-somethings come along and invent entire new platforms like Facebook that change the world in different ways, learning the lessons from Steve Jobs and adding their own twists.
20多岁的人追随，学习史蒂夫·乔布斯的经验，再加上他们自己的智慧，创造了像Facebook 的新平台，用不同的方式改变了世界。
Parking is available on a first-come, first-served basis along tree-lined Kai Yuan Road.
停车位是沿着开元路上，总是先到先得。
blog.sina.com.cn

Early in Google's post-IPO life skeptics fretted that some kid in a garage could come along some day and out-Google Google, doing to them what Google did to Excite and Alta Vista.
FORBES: On the web it's winner-take-all.
These are typically costly and come from clapped-out fields along ageing pipelines through unreliable transit countries, with unwelcome political conditions attached.
ECONOMIST: Energy security in Europe
High-profile cases come along every one or two years in Northern California.
FORBES: Courtroom Sketches of Apple, Samsung Trial Seen As Tech Collectibles

You tell someone to come along to encourage them in a friendly way to do something, especially to attend something.
When something or someone comes along, they occur or arrive by chance.
If something is coming along, it is developing or making progress.