A ship includes: a hull; a tank that is installed in the hull and stores liquefied gas, the tank including a cylindrical tank body and a dome, the tank body extending horizontally, the dome protruding upward from the tank body; a tank cover that covers the tank body, the tank cover including an opening that allows the dome to be inserted therethrough; an annular reinforcing member that supports the tank cover around the opening; and a chock that restrains rolling of the tank, the chock being provided between the reinforcing member and a top portion of the tank body.
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