0 If something happens on and off during a period of time, it happens sometimes:
I've had toothache on and off for a couple of months.
中文繁体
時斷時續地, 間歇地…
中文简体
时断时续地, 间歇地…
Polski
sporadycznie, od czasu do czasu…
Türk dili
zaman zaman, aralıklarla…
русский язык
время от времени, периодически…
NYA ORD
European
May 10, 2021
DAGENS ORD
Shimmer
on and off
