864 免版稅視頻檔案，用於"回到學校"

大學外太空科學天文學行星光醫學恆星地球星系

Heart ekg cardiology

HD

00:10

Black hole wormhole space

外太空星系

Full HD

00:15

Space galaxy creation

外太空星系

Full HD

00:29

Earth universe space

外太空科學

Full HD

00:20

Earth universe space

外太空科學

Full HD

00:20

Black hole explosion detonation

外太空科學

Full HD

00:06

Black hole swirl hole

外太空科學

4K

00:08

Energy atom atomic

00:10

Mars horizon approximation

天文學大學

00:15

Dna medical research

HD

00:09

Star space universe

外太空星系

Full HD

00:21

Galaxy milky way sky

天文學星系

Quad HD

00:12

Time circles flip-timer disc-timer

Full HD

00:15

Windows view 3d

外太空科學

Quad HD

00:18

Red blood cells erythrocyte blood

00:12

Brain education science

醫療藥物科學

Full HD

00:13

Learn fogging fog

4K

00:26

Bones skeletal human

HD

00:10

Atoms electrons energy

電子學能量

Full HD

00:14

Atoms molecule chemistry

HD

00:14

Blood cells medical blood

醫療藥物科學

HD

00:10

Atmosphere planets nasa

HD

00:06

Mars planet rocket

HD

00:21

Jupiter io planet

外太空行星

Full HD

00:15

Electronics display science fiction

電子學表演

Full HD

00:09

Black black friday background

Full HD

00:10

Earth universe space

外太空科學

Full HD

00:20

Earth universe space

外太空科學

Full HD

00:10

Light eclipse star

Full HD

00:13

The moon moon 3d

Full HD

00:17

Light space universe

Full HD

00:13

Dna genetics clone

建築物科學

Full HD

00:18

Heart treatment medical

醫療藥物科學

Full HD

00:18

The globe land planet

外太空地圖

Full HD

00:25

Mars planets planetary system

HD

00:05

Computer universe galaxy

Full HD

00:05

Light time travel universe

外太空行星

4K

00:59

News atoms electrons

電子學物理學

Full HD

00:14

Artificial insemination human anatomy bench

科學家健康

Full HD

00:04

MAH06486

MAH06396

Planet cosmos universe

外太空行星

Full HD

00:26

Cassette tape electronics

電子學磁帶

Full HD

00:05

Geometry 3d points

Full HD

00:08

Light optical burst

Full HD

00:32

Star space universe

外太空恆星

Full HD

00:10

Circle space optical

外太空圓形

Full HD

00:11

Untitled

Neptune planetary system planet

外太空行星

HD

00:59

Comet nasa mars

HD

00:52

Space stars warp

外太空星系

4K

00:35

Stars starry astronomy

外太空旅行

4K

00:21

Woods forest nature

Full HD

00:30

Universe space galaxies

奇幻小說科學

4K

00:32

Earth universe space

外太空科學

HD

00:25

Earth universe space

外太空科學

HD

00:20

Spinning moon lunar

奇幻小說科學

Full HD

00:05

Earth universe space

Full HD

00:10

Lungs anatomy medical

醫療藥物科學

Full HD

00:15

Liver function names

醫療藥物科學

Full HD

00:10

Eyeball eye anatomy

醫療藥物科學

4K

00:10

Asteroid vesta space

外太空天文學

Full HD

00:10

Time circles blur sketch timer 10 seconds

Full HD

00:14

Comet tail rotation

天文學彗星

Full HD

00:20

Light space universe

00:14

Square 3d geometry

正方形形狀

Full HD

00:05

Effect fantasy spiral

奇幻小說大學

4K

00:45

Light wave waves

Full HD

00:12

Space light atmosphere

Full HD

00:12

Light galaxy magical night

天文學星系

Full HD

00:03

Earth running blue planet space

外太空大學

Full HD

00:15

Light space universe

00:14

Light space universe

00:23

Woods forest nature

Full HD

00:22

Woods forest nature

Full HD

00:28

Sun hot sunspots

天文學科學

4K

00:30

Skull cat scan medical

Full HD

00:02

Curta calculator mechanical

淺褐皮膚技工工藝

Full HD

00:46

Universe earth astronautics

奇幻小說科學

Full HD

00:59

The globe land planet

外太空地圖

Full HD

00:25

Moon solar system space

外太空科學

Full HD

00:20

Intestines intestine function

醫療藥物科學

Full HD

00:13

Human skeleton anatomy

醫療藥物科學

Full HD

01:02

Dummy preparation students

Full HD

00:31

Stars universe endless space

HD

00:19

Ripples graphics geometry

Full HD

00:07

Sun atom energy

Full HD

00:10

Pattern movable transition

幾何學模式

Full HD

00:10

Sun the nature of the energy

Full HD

00:10

Eye neuron zoom

Full HD

00:10

Earth planet space

外太空行星

Full HD

00:10

Stars space universe

外太空恆星

Full HD

00:25

Learn seiser alm sun exposure

4K

00:20

電子學原子

Full HD

00:14

Science cosmos space

外太空科學

Full HD

00:12

Comic book literature

Full HD

00:07

Heart medical cardiology

醫療藥物背景

HD

00:12

Atoms sense elementary particles

4K

00:10

Moon satellite space

外太空天文學

Full HD

00:08

Rocket launch nasa space ship

HD

00:20

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