首长的英文：
senior official

参考例句：

Article76 Administrative rules shall be promulgated by way of an order signed by the person in charge of the agency.
第七十六条部门规章由部门首长签署命令予以公布。

The senior officers came to the military camp for inspection.
首长来到军营视察。

My head is a man who always acts up.
我的首长是一个总爱出风头的人。

(also President)head of some colleges,government bodies or departments,societies,etc
(学院的)院长、(政府部门或机构的)首长、(社会团体等的)会长等

The executive head of State,eg the President of the US
一国的行政首长(如美国的总统).

One who holds a position of presiding rank, especially the head of an elementary school or high school.
首长，负责人处于最高地位的人，尤指小学或高中校长

He had been advertised in advance as the most sympathetic and genial officer in a division command
他早在来前就闻得将军是师一级首长中最和蔼可亲的一位。

Duhalde is trying to persuade congressmen and local government leaders to support the necessary economic reforms
杜哈德设法说服国会议员与地方政府首长支持必要的经济改革。

His mother, on the other hand, was paternal, and even, according to the slang of the day, gubernatorial
他的母亲倒象父亲，按照当时通俗的说法，甚至有些象首长。

senior是什么意思：
adj. 较年长的；较高的；资历较深的
n. 较年长的人；高年级学生；上司

He is senior to me.
他的职位比我高。

The interests of seniors tend to be . . . varied
老年人的兴趣倾向于…多彩的。

Senior prom, do you have the fever?
毕业生舞会，你有兴趣吗？

Seniors and moms flocked to their booth.
老年人和母亲们蜂拥来到他们的摊位。

There are separate rooms for senior and junior officers.
高级军官和下级军官的房间是分着的.

official是什么意思：
n. 官员，行政人员；裁判员，执法人
adj. 官方的，法定的，正式的；公务的，公职的；冠冕堂皇的；官员的

Babbitt was an official delegate.
巴比特是一名正式代表。

He is an important official in the government.
他是政府的要员。

It is a scandal for officials to take bribes.
政府官员接受贿赂是可耻的事。

The official reception will be held on Tuesday.
官方招待会将于周二举行。

As officials of the town, this was definitely their business.
他们既然是这个城镇的官员，这当然是他们的职责所在。