拿一本红色的数或者其他颜色鲜艳的物体，拿着它对着墙。无论书贴不贴着墙都不碍事。
Take a red book or some other brightly coloured object and hold it against the wall.
从画廊回来的路上，我又路过了那家咖啡馆，想起前些天这儿还是一家书店，当时在贴近地板那一层的书架上，立着一本红色布面封皮的美术书。
On my way back from the gallery I again passed the cafe and remembered that in other days, when it was a bookstore, on one of the shelves near the floor stood an art book with a red cloth cover.
不一会儿，我从上面拿下一本书来，特意挑插图多的，爬上窗台，缩起双脚，像土耳其人那样盘腿坐下，将红色的波纹窗帘几乎完全拉拢，把自己加倍隐蔽了起来。
I mounted into the window-seat: gathering up my feet I sat cross-legged like a turk; and having drawn the red moreen curtain nearly close I was shrined in double retirement.
稍后她想起母亲的诺言，便悄悄把手伸到枕头下面，果然摸出一本菲红色封面的书。
Then she remembered her mother's promise, and, slipping her hand under her pillow, drew out a little crimson-covered book.
稍后她想起母亲的诺言，便悄悄把手伸到枕头下面，果然摸出一本菲红色封面的书。
Then she remembered her mother's promise, and, slipping her hand under her pillow, drew out a little crimson-covered book.
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