And if you have a pull down here and you have a pull up here and you have in here a spring then you see you have a way of measuring that force.
往下拉这儿的话,会产生向上的拉力,中间有根弹簧,它能帮助你测出力的大小了。
If I can figure out a way to force the child class (PartDb) to tell the parent class the value of this SQL string, I can pull this method up as well.
如果能够迫使子类(PartDb)把这个sql字符串的值告诉父类，就可以把这个方法提升到父类中。
The gravity pull of habits is a powerful force and, if we use it effectively, we can create the necessary order to build up effectiveness.
只要我们善于运用习惯这一强大引力，我们就能建立起良好的秩序，创造有效率的生活。
The gravity pull of habits is a powerful force and, if we use it effectively, we can create the necessary order to build up effectiveness.
只要我们善于运用习惯这一强大引力，我们就能建立起良好的秩序，创造有效率的生活。
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