大校的英文：
senior colonel

参考例句：

SETTING SAIL ON THE YANGZI TO SECRETARY YUAN
初发扬子寄元大校书

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.

colonel是什么意思：
n. （陆军）上校

A colonel comes after a general.
上校的地位低于将军的地位。

The Colonel scans the gloom of the forest.
上校扫描着阴暗的森林。

…and there was the known affection of the Colonel for his wife
…上校忠实于他的妻子是人所共知的。

The government accorded him the rank of Colonel.
政府授予他上校军衔。

The colonel ordered their soldiers to gather on the deck.
上校命令士兵们在甲板上集合。