caution in advance

• 预警

caution in advance的用法和样例：

例句

1. Basic early warning systems are being set up in the affected areas.
   受灾地区将会安装预警系统。
2. The early-warning satellite is a important part in the NMD.
   预警卫星是国家导弹防御系统中的重要组成部分。