A casement is a window that opened by means of hinge at the side. 竖铰链窗是一种用边上的铰链开启的窗户。
Two of them knelt at her casement, with muskets at their side! 他们的其中两个跪在窗前,跟著火枪在他们身边!
casement
[ noun ] a window sash that is hinged (usually on one side) <noun.artifact>
Casement \Case"ment\, n. [Shortened fr. encasement. See {Incase 1st Case}, and cf. {Incasement}.] (Arch.) A window sash opening on hinges affixed to the upright side of the frame into which it is fitted. (Poetically) A window.