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学科
- Mountains[remove]15
- Shrubs[remove]15
- Trees14
- Rocks7
- Automobiles6
- Roads5
- Valleys5
- Cumberland mountains4
- Flowers4
- Fog4
- Great smoky mountains (n.c. and tenn.)4
- Newfound gap (n.c. and tenn.)4
- Tennessee river valley4
- Whitney, Mount (Calif.)3
- Buildings2
- Channels2
- Golden gate bridge (san francisco, calif.)2
- Hills2
- Suspension bridges2
- Bays (bodies of water)1