mrphrasalverb

Keep on talking about 10 Business Phrasal verbs today we are studying the following verbs.
Continuant  amb el comentari dels 10 Business Phrasal Verbs, avui estudiarem els verbs següents:

TO HEAR BACK FROM someone AND TO COME UP 

1.- To hear back from :
Here “The Arrow” takes something to the point where message comes from.

Aquí “The Arrow” porta, al punt on s’ha originat el missatge, feedback / resposta sobre alguna cosa

I haven’t heard back fron the client yet 

2.- to come up:
appear, happen unexpectedly
presentar-se,  sorgir d´improvís, 

I’m sorry but I can’t attend the meeting tomorrow, something has come up.

UP is the upward arrow that goes up.  Maybe it means something comes in an approching direction

Up és la fletxa vertical que puja cap amunt, però amb el verb to come  no s’observa aquesta direcció a primera vista. To come vol dir venir i Up “venir en forma vertical” ? Algú ve i està davant nostre dempeus., 
Quina és la vostra opinió?