推荐英语词组
- needle electrode
- azophenine
- ethyl diethylcyanoacetate
- building of refinery units
- family organization
- erythema figuratum perstans
- potassium silicofluoride
- foot valve seat
- Toma's sign
- a zigzag path
- unfair verdict
- environmental system
- hydrogen ion
- tuberculosis of lunge
- null-current circuit
- diaphragn spring
- combined condition
- Karl Fischer reagent
- insist
- articulationes radiocarpea
- methitural
- Bacterium viridis