同事，同行

(noun, FORMAL) A respectful term for a co-worker in professions such as education or medicine.

例句

EXAMPLE: The unknown scholar often corresponded with her colleagues at many famous universities around the world.

这位不知名的学者经常和世界很多知名大学的同行通信。

“我错了”

(SLANG) An admission of guilt for a minor mistake; an expression meaning my fault!

EXAMPLE: When I accidently knocked over my friend's bag of golf clubs, I quietly said my bad! and he laughed as we picked them up.

我不小心碰翻了朋友的高尔夫球袋，我平静地说：“我错了！”他一边笑，一边和我一起把球棍检起来。