between and等于词组from…to，例如：
1.She doesn't understand the difference between right and wrong.她不能明辨是非。
2.This model represents the best compromise between price and quality.这种型号是价格和质量间的最佳折中方案。
3.The number of new students decreased from 210 to 160 this year.今年新生人数从210减少到160。
