Cut holes in the middle of both books, string them by a metal ring, neither of them can be read.
在两本书中间都切一个口，用一个金属环把它们串在一起，哪本都翻不开。
2
At Blue Nile, a three-stone white gold ring set with an oval-cut sapphire (just shy of one carat, good color, no visible flaws) and flanked by two 0.15-carat diamonds goes for $1,575.
In a graph prepared for the World Meteorological Organisation in 1999, Dr Jones cut off the divergent part of one set of tree-ring data and spliced on data from thermometers.