为什么人伤心会哭？Your brain4 knows when you feel sad. It sends a message (发信号) to your body to produce (产生) tears. Some scientists think crying may be good for us. It helps us feel better after. ……

body with our brain. Other animals also have special (特别的) brains. Sheep are good at recognizing... tricks (表演杂耍). And they can even sleep and swim at the same time!Your brain is about the size of two ……

of dots (小圆点).Think about itYour brain is about the size of two fists (拳头).We have strong brain5 power (力量). We think and give orders (命令) to our body with our brain. Other animals also have special ……

, liver (肝脏) and milk have a lot of vitamin (维生素) A. They can make your eyes see better.2. Don’t watch a computer or TV for too long. Exercise2 your eyes. 3. Turn on lights when it’s getting dark ……

said. In three years, he has donated (捐赠了) more than 1,000 books. What a good example (榜样)! ……

. They send1 the pictures to your brain2. Your brain works out what your eyes are seeing... upside down? Well, your eye sends the picture to your brain. Your brain turns the picture the right way ……

’s more, being scared in a safe placecould be a good way to boost our confidence, explained Margee Kerr, one of the study’s authors.could be a good way to boost our confidence, explained Margee Kerr, one ……

神秘村》) on April 21. It’s the third Smurf movie. TEENSBrainy聪聪Brainy is very smart. His brain is his best weapon... is good at sports. On the journey, he even falls in love with Smurfette.Smurfette蓝妹妹 Smurfette ……

. Tomatoes can help protect (保护) your skin against sunburn. Blueberries are good for your brain... the warm days? Teens has some good ideas for you:Eat wellIn summer, it’s better to eat fresh and light ……

and can do some special things. Large and heavyLook, this is a sperm whale (抹香鲸). Its brain is about 7 kg. It’s as heavy as a big schoolbag full of books. It is the largest brain on the planet ……

way of greeting. It’s very romantic. But when facing the virus, too many kisses are not good... kisses are not good. Etiquette (礼仪) expert Philippe Lichtfus gives everyone in France ……

of greeting. It’s very romantic. But when facing the virus, too many kisses are not good. ... are not good. Etiquette (礼仪) expert Philippe Lichtfus gives everyone in France a suggestion: simply ……

their wayIf you get lost in a forest, you might need a map to find your way home. But pigeons (鸽子) can... in a forest, you might need a map to find your way home. But pigeons (鸽子) can just use their brains. Pigeons ……

in lycopene (番茄红素) that can help protect your skin against sunburn. Blueberries are good for your brain... opportunities to get outside and be active. How to stay fit in this warm season? Here are some good ideas: Stay ……

"I think it's much better to go with the flow andembrace(拥抱) your body, whatever shape it is, and just be happy."Actress Keira Knightley ("King Arthur"), on not giving in to pressure about looking ……