从词意本身来看，“learn”在英语中的含义是“gain knowledge of…”，也就是已经包含了“获取知识”这层意思。 如果再用“learn knowledge”，就和“gain knowledge of knowledge”没有区别，存在语义重复的问题。 因此，“learn”后面往往要接具体的学习对象。 例如： “a ...

IntroductionI want to make solid-state drives (SSDs) the optimal storage solution for my key-value store project. For that reason, I had to make sure I fully understood how SSDs work, so that I can ...