[sмαsм]

The most difficult problem in translation is Idioms

because you cannot suggest or guess the meaning from context

you should look up for the word or phrase in the dictionary

you must know it

to be able to understand with native speaker very well

He looks blue
المعنى الحرفي : هو يبدو ازرقاً
المعنى المجازي : هو يبدو حزيناً

also some of them are funny

for e.g.

It rains cats and dogs
المعنى الحرفي : انها تمطر قططاً و كلاباً
المعنى المجازي : انها تمطر بغزاره ,,,,,,,,,,,,

^_^ thank you very much for the interesting topic