alertly的意思？

Rhett's eyes came alertly back and they were sharp , but his voice was casual.瑞德的眼睛警觉地往后一缩,但还是犀利的, 不过声音有点犹豫了.She got through the day alertly, despite being on drugs.尽管吸食了毒品,她还是很警惕地度过了那一天.Alertly, excessive drinking ...

alertly的音标：alertly的英式发音音标为：[ə'lɜ:tlɪ]alertly的美式发音音标为：[ə'lɜtlɪ]...