私吞的英文：
misappropriation
pocket

misappropriation是什么意思：
n. 私吞

The treasurer misappropriated the society's funds.
那会计盗用了协会的基金。

No project principal or supporting institution may steal or misappropriate the funds by any means.
项目负责人、依托单位不得以任何方式侵占、挪用基金资助经费。

There are cases of work units misappropriating budgetary funds or special funds in disregard of the relevant rules and regulations.
有些单位违规挪用财政资金和专项资金。

pocket是什么意思：
n. 袋，口袋；钱财；小组织，小区域
v. 把…装入袋内；侵吞，盗用；（球）入球袋；隐藏，忍受
adj. 袖珍的；小型的

To pick or try to pick pockets.
扒窃或企图扒窃

He will suffer in his pocket.
他将在钱财方面有所损失。

There are pockets of ore in the mountain.
那座山里有好几块矿藏。

Money burns a hole in the pocket.
钱会把衣服口袋烧出一个洞。

His pocket was bulging with apples.
他的口袋里鼓鼓地装满了苹果。