to remove unwanted parts from a mix
retirer les parties indésirables d'un mélange (retirer les parties indesirables d'un melange)
"We need to sift out duplicate entries in the list."
"Nous devons sift out les entrées en double dans la liste." (Nous devons **sift out** les entrees en double dans la liste.)
A true friend is invaluable and precious.
Going from a bad situation to an even worse one.
succeeding after two failures
said when someone appears just as you mention them
getting old
to be very frightened