backstay
/ˈbæksteɪ/ 16a stay leading aft from the upper part of a mast to the deck or stern (船桅的)后支索
noun [专属名词]（船桅的）后支索；后部加固或支持物
The backstay provides support from the opposite direction, and the shrouds provide support from each side.
backstay(后桅支索)则从相反的方向提供支撑，shrouds(侧翼支索)从两侧提供支撑。
单词造句: