居功的英文：
take credit to oneself

参考例句：

I can't take credit for achievements made through collective work.
集体努力取得的成绩，我不能居功。

take是什么意思：
v. 拿，取；带；获得；采取；承担；吃；耗费；乘，搭；以为；理解；走；抓住

a catch; a take; a taking
捕获量

take a nap; take a snooze
小睡一下;睡午觉

take service with
在￥帮佣

credit是什么意思：
n. 贷款；信用，信誉；荣誉；学分
v. 相信；记入贷方 ；把...归于，归功于；赞颂

The account is in credit.
这个帐户有存款。

Give credit where credit is due
归功于有功者;要有雅量承认他人的优点

Give credit where credit is due.
有功则赏

oneself是什么意思：
pron. 自己；亲自，自行

apologize for oneself
为自已解辩或辩护

pride oneself on
使得意

embroil oneself in
使某人卷入纠纷