He reads the CARDS carefully, discards some, re-reads the rest, and divides up the stack according to what he thinks are the several senses of the word.
词典编者要仔细认真地研读,再根据词典编者认为单词所含有的几个义项将这一推卡片加以分类。
2
Parallel circuit: A circuit in which all the parts are connected to the same voltage but the current divides between them and later re-unites.