1. 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. The hierarchy can include subject heads, whose meaning is equivalent to the union of subjects contained within the subject head. 层次结构可以包括主题头，它的意义与主题头中包含的所有主题的联合相同。
3. Plaster casts of the heads of executed criminals were examined and compared to a reference head to determine whether any particular protuberances could be reliably associated with criminal behavior. 人们检查了已经被执行死刑的罪犯的头部石膏模型并跟一个参考的头型做比较来确定是否头部的一些特定的隆起确实下犯罪行为有关。
4. Or to rest your head. Now scientists say that by separating our heads from our bodies, the neck gave our brains a leg up in evolution. 现在科学家宣称脖子通过将我们的头部从躯干上分离开，给大脑的进化助了一臂之力。
5. If it can't swallow the whole thing, it will settle for its head, and that roach is dead for sure (or at least, dying, because roaches are known to survive for a while without heads). 即使不能吞下整一只，它会先解决它的头，这样那只小强就必死无疑了或至少，快死了，因为据说小强没头也还能活一段时间。
