The number of employees other than current department heads who could take on the position of department head is equal to only about half of the expected vacancies.
除现有部门主管外，能够担任部门主管职位的员工数量仅相当于预期职位空缺的一半左右。
2
A more energy-efficient approach would be to head straight into the current as long as possible and then turn, much as a sailboat tacks in the wind.
一个更节约能源的方法是：尽可能的沿着水流的方向前进，然后再转向，就像帆船在风中行驶那样。
3
If this condition is true (meaning I want this item in my list), I return a new list constructed by taking the currenthead and a filtered remainder of the list.