noun 下载 🔗分享 上升气流,上升气团。 An upward current of air, especially a strong one Examples : "The soaring bird used the updrafts to gain altitude without flapping its wings. " 那只翱翔的鸟利用上升气流,不用拍打翅膀就能升高。 weather nature environment physics 与AI对话词汇游戏阅读练习