reversible
adj
that can be reversed 可反转的; 可翻转的; 可倒退的; 可转变的; 可撤消的; 可逆的
a reversible coat, scarf, cap, etc, ie one that can be worn with either side turned out 可正反两面使用的大衣、 围巾、 帽子等.
Next, if it is not a story, get an idea of the organization of the book. Read the back cover and the introduction. Look at the pictures and the short texts below them. Turn to the front of the book and look at the contents. This way you can decide whether