Why can’t I use the blood I need even though I have a blood donation certificate?

Why do some people say that white porridge is junk food? [Food Records]

saiboxiaoshilu

1 View

Why do we need to cut a slant on the tree when felling it?

haoqiwanhuatong

17 Views

A massage in Japan made me cry

lingzireiko-

95 Views

Why do we cut trees at height? Will there be accidents? #高空伐木 #解压 #科普

haoqiwanhuatong

8 Views

Why can loose sand be made into sand sculptures after mixing with water?

haoqiwanhuatong

10 Views

Why not use a high-pressure water gun to wash your car? #Science #Unzip #High-pressureWaterGun #CarW

haoqiwanhuatong

13 Views

Why is steel colored after cutting? #Science #Unzip #Metalworking #CoolKnowledge

haoqiwanhuatong

29 Views

Yemen is the first country to be destroyed by drugs, even children are not spared. How tragic is it?

tanmi

18 Views

How are the patterns painted on ceramics? #Science #StressRelief #Pottery #LearnSomethingNew

haoqiwanhuatong

12 Views

The Fertilization Process of Sperm and Egg

Jinzhengmeiyongde

8 Views

How to become a good kisser?

dingxiangyisheng

25 Views

When talking about her father, Liu Yifei's eyes welled up with tears. Although her parents are divor

xiaofuji___i

13 Views

Why can a hatchet easily chop down a tree as thick as a bowl? #Science #Relief #Hatchet #Logging #Tr

haoqiwanhuatong

9 Views

Black Silk Massage 4

chu_____i

79 Views

How to lay a qualified asphalt road? #Science #Unzip #Paving #Knowledge

haoqiwanhuatong

23 Views

Why does the doctor always pry into my sex life?

danzijihe_04

15 Views

When a rotary drilling rig is used to drill and pile, why is the hole filled with mud?

haoqiwanhuatong

27 Views

An 8cm long * actually has to do so much work?!

awenjiushiaya

13 Views

Paid blood donation in Southeast Asia is horrible. It is used to screen for matching blood type orga

miaowuyuleyingshi

14 Views

Why doesn't it hurt when a needle is stuck in my finger?

yaki1

50 Views