louvre (also louver)

n (a) one of a set of fixed or movable strips of wood, metal, etc arranged to let air in while keeping light or rain out （一条）百叶窗板. (b) set of such strips inside a supporting frame （一套）百叶窗板.

lotus position, loud, loud-mouth, loud-mouthed, loudhailer, loudly, loudness, loudspeaker, loudspeaker (also speaker), lough, Louis Pasteur, lounge, lounge bar (Brit) (US saloon bar), lounge-suit, lounger, lour (also lower), louse, lousy, lout, loutish, louvred (also louvered), lovable, love, love affairs, love-affair, love-bird, love-child, love-hate, love-letter, love-making, love-match, love-potion (also love-philtre), love-seat, love-song, love-story, loveless, loveliness, lovelorn, lovely, lover,