Better to do
This phrase is used to advise someone that it would be better for them to do something.
Examples
早く水をあげたほうがいい。
It's better to water quickly.
草を取ったほうがいい。
It's better to remove the weeds.
定期的にチェックしたほうがいい。
It's better to check regularly.
Quick check
早く水をあげ___ほうがいい。