Fribourg
- n.弗里堡(瑞士西部一都市)
Fribourg
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friction block
friction clutch
friction feed
friction materials
friction press
Friction velocity
Frida Gustavsson
Fried bean curd
Fried Candy
Fried dumplings
Freundel Stuart
Freund incomplete adjuvant
Freudian Psychology
Fresnel lens
Fresnel double prism
Fresnel diffraction
freshwater school
Freshwater Fisheries
freshwater crab
Fresh shrimp