1、提防
... shooting guard得分后卫 on guard against提防 safe guard安全设备,安全措施;安全护板;护轨 ...
2、警惕
...give sb a lift让某人搭车,帮某人忙on guard against警惕(提防)keep company 结交(和...交往) ...
Be on guard against防范;小心防备;警戒;警惕
stand on guard against防止
on guard against risks风险防范
be on guard against everyone人都有戒心
be strictly on guard against小心警惕地防范;严防
to be on guard against提防