on the safe side
US /ɑn ðə seɪf saɪd/
UK /ɑn ðə seɪf saɪd/
1.
以防万一, 为了安全起见
to take precautions to avoid risk or danger
:
•
I'll bring an umbrella, just on the safe side, even though it's sunny.
我会带把伞，只是以防万一，即使现在是晴天。
•
It's better to arrive early, just on the safe side, to avoid traffic.
最好早点到，只是为了安全起见，以避免交通堵塞。