Synonyms that are in the dictionary are marked in green. Synonyms that are not in the dictionary are marked in red.
Antonyms that are in the dictionary are marked in green. Antonyms that are not in the dictionary are marked in red.
Vigilance on the banks of the Amur River has been stepped up for fear of a return of the virus from Russia by smugglers, poachers or cross-border fishermen.