отказываться от

см. тж. отменять; прекращать

• We must do away with the present system.

• The ruby laser must be ruled out for fusion purposes.

• Here, the engineer should discard (or rid himself of, or abandon, or give up, or dismiss) many old concepts.

• This practice has long been discontinued.

• The process was dropped as uneconomic.

• This design was rejected (or ruled out).