清楚: clear, distinct, to understand thoroughly, to be clear about...
书橱: bookcase...
狂: mad, wild, violent...
引进: to recommend, to introduce (from outside)...
使用: to use, to employ, to apply, to make use of...
平原: field, plain...
租赁: to rent, to lease, to hire...
拣: to choose, to pick, to sort out, to pick up...
后台: backstage area, behind-the-scenes supporter, (computing) back-end, background...
各: each, every...
