reach

reach for his pipe
伸手去拿煙斗

reach to
my income would not reach to it
磬盡所入, 猶不可企及


reach = hand/pass 遞
reach me that book


react to/against/upon
how did they react to the news?
they react upon each other

react with
nitrous oxid reacts with the metal


(from OERD)