在域建模的时候，使用Iterable有一些明显的缺陷，因为通过iterator方法只能那么“隐晦”地支持一个那样的对象集合。

Using Iterable has some obvious drawbacks when domain modeling, because only one such collection of objects can be so "implicitly" supported via the iterator method.

youdao

Again, whether it's conscious, subconscious, explicit or implicit, the question though is in fact it is important, should it be important?

不论是有意识的，还是潜意识的，明显的还是隐晦的，问题是它确实重要，但快乐应该是重要的吗？

哈佛公开课 - 幸福课课程节选

Frost wishes to be so subtle as to seem altogether obvious.

弗罗斯特想要表现的如此隐晦以至于看似很明显地摆明了。

耶鲁公开课 - 现代诗歌课程节选

Happiness, whether we like it or not, whether it's consciously , subconsciously, whether it's explicit or implicit, for most people-- not all, but for most people, it is the highest end.

快乐，不论我们喜欢与否，不论它是有意识地，还是潜意识地，不论它是明显的还是隐晦的，对多数人来说-,不是全部但对多数人来说，快乐是最高追求。

哈佛公开课 - 幸福课课程节选