a thing or two

US /ə θɪŋ ɔr tuː/
UK /ə θɪŋ ɔr tuː/
"a thing or two" picture
1.

一两件事, 一些

some things; a few things (often implying knowledge or experience)

:
I know a thing or two about cars.
我对汽车略知一二
She taught him a thing or two about cooking.
她教了他一些烹饪技巧。