「課題文」

Russian frigate Admiral Gorshkov – the first of a four-ship convoy – fired a 21-gun salute after entering Havana harbor, which was answered by the Cubans with cannon fire from an 18th-century colonial fort built by the Spanish to guard the port.

The Gorshkov is one of the Russian Navy’s most modern ships,  and was followed by the nuclear-powered submarine Kazan, a rescue tug, and an oil tanker.

Onlookers and fishermen lined the seafront to watch the vessels arrive in the harbor. A CNN team on the ground saw members of the small Russian community in Cuba and Russian diplomats carrying national flags to welcome the crews.

Some of the Cubans present told CNN they had never seen a submarine enter the bay of Havana before. The four Russian ships are now docked in berths usually occupied by cruise ships.