1.corporation n.公司；法人
He works for a large American corporation.
他为美国一家大型公司工作。
2.superior n.上级；高手
He always does what his superiors tell him.
他惟上级之命是从。
3.structure n.结构；构造
Can you analyze the structure of the sentence for me?
你能给我分析一下这个句子的结构吗？
4.perform v.执行；履行
Every manager must perform some duties of a ceremonial nature.
每个管理者必须执行一些礼仪性的任务。
5.dilution n.稀释；冲淡
Cardiac output was measured by thermo dilution.
用热稀释法测定心输出量。
