Come along：to arrive; to appear; to follow; to develop（朝某个方向发展、完善；到达、出现；跟着某人一起走）
1、If something is coming along, it is developing or improving.
E.G.1：Wow. Things are really coming along. — Yeah. Slowly and expensively. （DH S01E20）
参考翻译：哇哦！一切都进行得不错啊。– 是啊，缓慢且代价昂贵。
E.G.2：Hey. I got the stuff for the mushroom tarts. How’s that cake coming along? （DH S06E08）
参考翻译：我把做蘑菇馅饼的材料买回来了。蛋糕做得怎么样了?
2、To arrive or appear at a place.
E.G.1：Of course, if the right hero doesn’t come along, sometimes, we just have to rescue ourselves. （DH S01E17）
参考翻译：当然，如果真正的英雄不出现，在某些时候，我们就得自我救赎。
E.G.2：But as much as we like to talk about the sinful things people do…We forget there is a difference between sin…and evil. Sadly, there’s always someone willing to come along and remind us. （DH S06E01）
参考翻译：虽然我们常会谈论道德沦丧之事，却忘了不道德与…邪恶的本质区别。悲哀的是：总会有人出来提醒我们。
E.G.3：And when the pursuit of our heart’s desire becomes an obsession, the best we can hope for is a caring friend willing to come along…and stop us. （DH S05E07）
参考翻译：当我们内心所追随的欲望变成了一种心魔，我们能期待最好的事情就是：一个关心我们的朋友愿意来到我们身边，并制止我们。
3、to go somewhere with someone.
E.G.1：All right, people, we’re going to follow the body. This way, please. Come along! （DH S01E17）
参考翻译：好了，大家还是跟着遗体走吧。 请走这边，跟上来。
E.G.2：Well, before we get drawn into Miss Denker’s past adventures, why don’t you come along with me and I’ll show you how it all works （DA S05E08）
参考翻译：趁丹可小姐还没开始滔滔不绝地讲她的过去，你随我来，我带你熟悉一下工作情况吧。
