on one's guard

adv.

警惕；

Extension of the SU2 open source CFD code to the simulation of turbulent flows of fuids modelled with complex thermophysical laws
SU2: the Open-Source Software for Non-ideal Compressible Flows
Fabricated Electrical Circuit On Touch Sensor Substrate
OF THESE WORKS ON ROWING, ONE SPRINTS, ONE SINKS
GW's Patterson Goes One-on-One With Toughest Foe;Senior Guard, Battling Cancer, Says Count Him in for '92-93
On-board guard-band chamber environment emulator
DoSGuard: Protecting pipelined MPSoCs against hardware Trojan based DoS attacks
[Peculiar electroencephalographic aspects of 2 cases of subacute sclerosing leukoencephalitis]
The effect on energy absorption of hard inserts in laminated EVA mouthguards
Effect of mouthguards on head responses and mandible forces in football helmet impacts