The bare little farmhouse was a fixedfact, but she had many a palace into which she now and then withdrew;
尽管这个空荡荡的小农舍是一个没法改变的事实，但是她心里却拥有许许多多的宫殿，可以时不时地进去躲藏。
2
In fact, homework is driven by employers' desires to minimize fixed costs: homeworkers receive no benefits and are paid less than regular employees.
事实上，做家庭作业的动机是雇主希望将固定成本降到最低：在家工作的人没有福利，工资也比正式员工低。
3
This speedup is due to the fact that the array is a fixed size, not a variable-sized one like the default PHP one is, and that non-numeric indexes are not allowed.