"a change for the better"
"the common man has been kept in his place by his betters"
"chose the better of the two"
"You're a better man than I am, Gunga Din"
"a better coat"
"a better type of car"
"a suit with a better fit"
"a better chance of success"
"produced a better mousetrap"
"she's better in math than in history"
"her health is better now"
"I feel better"
"it would be better to speak to him"
"the White House thought it best not to respond"
"argued for the better part of an hour"
"She had never sung better"
"a deed better left undone"
"better suited to the job"
"father knows best"
"I know better."
"She bettered her own record"
"break a record"
"The editor improved the manuscript with his changes"
"The weather improved toward evening"
I am better today, but not well yet.
如果在没有生病的前提下身体变强壮,不用better。
You had better go at once.
你最好马上去。
I think/thought I had better have gone already.
我以为你已经去了,实际上你没有去。