better at後面加什麼

Better at the tasks at hand? Happier?

更擅長手頭的工作?更快樂?

Being better at those things meant a greater chance of survival ．

更擅長做那些事情能增加生存的'機率。

Eyesight doesn't get any better at my time of life.

到我這把年紀，視力絕不會變好的。