| 2 be on the alert against; guard against; keep a close watch on: |
| | 采取警戒措施 take precautionary measures |
| | 沿公路布置警戒 post guards along the highway |
| | 警戒色 【动】 warning (or aposematic) coloration |
| | 警戒哨 outguard; picket guard |
| | 警戒线 cordon; security line |
| | 警戒部队 outpost troops; security force (or detachment) |
| | 警戒地带 outpost area |
| | 警戒水位 warning water level; warning stage |
| | 警戒状态 state of alert |
