通常的经验是，在Android设备中，浮点数会比整型慢两倍，在缺少FPU和JIT的G1上对比有FPU和JIT的Nexus One中确实如此（两种设备间算术运算的绝对速度差大约是10倍）
This is true on a FPU-less, JIT-less G1 and a Nexus One with an FPU and the JIT. (Of course, absolute speed difference between those two devices is about 10x for arithmetic operations.)
为了控制和操纵各种各样的玩具，孩子们可能学习使用特殊的计算机——那些解决问题和作算术题速度比你眨一下眼都快的机器。
To control or run all kinds of toys, boys and girls may learn to use special computers-machines that answer questions and do arithmetic faster than you can blink.
这听起来可能很简单，但大部分新手的算术水平之差和计算速度之慢却常会令我吃惊。
This may sound simple, but it never ceases to amaze me how poorly and slowly most beginners count.
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