in the dark

在黑暗中；秘密地

in short, in sight, in situ, in so far as, in some respects, in some ways, in spite of, in step, in stock, in succession, in such a way as to do, in sum, in support of, in tears, in terms of, in that, in the air, in the case of, in the common interest of, in the course of, in the direction of, in the disguise of, in the distance, in the end, in the event of, in the event that, in the face of, in the final analysis, in the first place, in the future, in the heat of, in the interest of, in the interest(s) of, in the interests of, in the issue, in the last place, in the least, in the light of, in the long run, in the main,