a snake in the grass

n.

潜伏的危险；暗敌；

A snake in the grass
A Snake in the Grass
A Snake in the Grass
Bacillus cereus: a snake in the grass for granulocytopenic patients.
The stethoscope and healthcare-associated infection: a snake in the grass or innocent bystander?
The retrocaecal appendix: a snake in the grass.
A snake in the grass! Unequal power, unequal contracts and unexplained conflicts:Facilitating negotiations over water conflicts in p...
Know what to do when your patient is assaulted by a snake in the grass
Functionally Different HA-1 Specific T Cells Use the Same TRBV7-9: A Snake in the Grass for T Cell Receptor Transfer Studies
A Snake in the Grass: Burmese pythons are putting a squeeze on the Everglades
A snake in the grass: assessing the ever-intriguing Ophidian figurines
A Snake in the Grass?: Section 798 of the Espionage Act and Its Constitutionality as Applied to the Press
Landowners face a snake in the grass