8.翻譯：一號水密門門閂斷裂。
(A)Bending of the bolt of No. 1 watertight door.
(B) Fracture of the bolt of No. 1 watertight door.
(C)Deformation of the bolt of No. 1 watertight door.
(D)Indentation of the bolt of No. 1 watertight door.

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統計： A(3), B(5), C(4), D(3), E(0) #1220272