in brief

简单地说，简言之

in, in light of, in (the )future, in a hurry, in a moment, in a sense, in a way, in a word, in accordance with, in addition, in addition to, in advance, in advance of, in all, in all directions, in alliance with, in and out, in any case, in any event, in between, in bulk, in case, in case of, in charge, in charge of, in chorus, in command, in common, in comparison with, in conclusion, in connection with, in connection with/to, in consequence, in consequence of, in contrast, in contrast with, in contrast with/to, in course of, in danger, in debt,