1.There must be plenty of reasons why, but they're mostly unarticulated, and maybe they always will be.
我这样做一定有许多原因，但是它们是无法阐述，而且或许以后也如此。
2.Some activists want to pull back, viewing the situation as a dangerously unarticulated barrage of anger.
由于认为现在的情况只是危险的无目的愤怒情绪的宣泄，一些活动份子想要退出。