to be on guard的意思|示意
保持警惕
to be on guard的网络常见释义
战兢 ... 战舰 battleship; warship 战兢 to be on guard; to tremble 战况 battle progress; battlefield situation ...
防范 ... 防杜 to prevent 防范 to be on guard; wariness 防故障操作员 fail-safe operator ...
to be on guard相关短语
1、 to be on guard against 提防
2、 measures to be on guard 防范措施