The phrase "abandon immediately" is correct and usable in written English.
It can be used in contexts where urgent action is required to leave or give up something without delay.
Example: "In case of an emergency, please abandon immediately and proceed to the nearest exit."
Alternatives: "leave at once" or "forsake without delay".
A European tour had to be abandoned immediately after a show at London's Roundhouse in November 2012, which apparently marks the last time the pair spoke to each other.
In Britain, the National Beef Association, which represents cattle farmers, issued a statement this month demanding that "all resistance" to such crops "be abandoned immediately in response to shifts in world demand for food, the growing danger of global food shortages and the prospect of declining domestic animal production".
In any case, it is still possible to conclude that since 1910 the synthetic pigments were present in almost all the formulations, but natural red pigments were not abandoned immediately, especially in the "surfin" (of superior quality) colors.
The safe house was abandoned immediately after bin Laden's death.
Sanada returned to Tokyo on 25 December and recommended to the IGH that Guadalcanal be abandoned immediately and all priority given to the campaign in New Guinea.
The two cubs were born at Taiyuan Zoo in northern China and were abandoned immediately after their birth by their mother, who staff had not suspected was pregnant.
Those who still have Anthony Hopkins's performance firmly in mind should abandon it immediately for the sake of enjoying this series' more subtle reimagining.
It was also unclear whether the Vatican would state those qualms firmly enough that American bishops in favor of the zero-tolerance policy, some of whom have already instituted it, would conclude that they had to abandon it immediately.
