If you start a path of one color you must continue to use only toe and handholds marked with that color.
VOA: special.2009.12.09
In fact, I'm going to use only two dimensions for most of the time because the difference between one dimension and two is very great.
实际上,大多数时候我只考虑二维的情况,因为一维和二维的差别很大
Dalil says officials are working to educate people on contraception, but only 15 percent of couples use one sort of family planning.
VOA: standard.2010.03.07
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