noun 下载 🔗分享 帆缆, 升降索。 A rope used to raise or lower a sail, flag, spar or yard. Examples : "The sailor adjusted the halyards to raise the mainsail before heading out to sea. " 水手在出海前调整了升帆索,准备升起主帆。 nautical sailing vehicle 与AI对话词汇游戏阅读练习