Fros don't drink water with their mouths. They "drink" water through their skin（皮肤）. ……

Do frogs drink water with their mouths? No. They "drink" water through their skin (通过皮肤). ……

Most frogs have teeth. Their small teeth are on the roofs5 of their mouths. So we can’t easily see them. ……

be different. Scientists found that their teeth were covered by their lips (嘴唇). When their mouths were closed, their teeth couldn’t be seen. When they opened their mouths, only the tip (尖) of their teeth ……

1. Which letter is a vegetable?2. When do people have two mouths?3. Why do birds fly south?Answer:1. p (pea)2. There are two people. 3. It's too far to walk. ……

The two whales are mom and kid. Their mouths are opened wide. What do you think they are saying to each other? Send your ideas to wangmin@21stcentury. com.cn before March 18, 2010. Have a go! ……

We use our mouths to fill (注满) balloons with air. Andrew, an American boy, uses his nose. He fills 23 balloons in three minutes. ……

We use our mouths to fill (注满) balloons with air. Andrew, an American boy, uses his nose. He fills 23 balloons in three minutes. ……

Q: Why do leeches (水蛭) still suck (吸) your blood even if you cut them in half?A. They feel nothing when they are eating.B. Their mouths get stuck.C. They love blood too much. ……

  为什么有人不喜欢吃西蓝花？为什么有人不喜欢吃西蓝花？It’s because of a special enzyme (酶) in our mouths... in their mouths than other people. So, they will have a stronger dislike for broccoli.It&rsquo ……

a choice because of no gravity. They may pick their food with their hands and put it into their mouths.Or they may let the food stay in the air. Then theyfloat(漂) to the food and get it with their mouths ……

they’re putting in their mouths. But more of them are eating out. According to the US National... make a huge difference.”Healthier?IN China, we don’t see much nutritional information on food boxes ……

DO dogs know how to get money from anATM(自动取款机)? Yes, these British dogs do. The dogs helpdisabled(残疾的) people. They use their mouths to put cards into the ATM. After they get the money, they give ……

五彩缤纷的气球玩具Look at these colorful toys. Their mouths and noses are very cute. People made them out of many balloons. The toys were on show during the International Balloon Exhibition (国际 ……

长着“蛙嘴”的夜鹰宝宝。LOOK at these two birds. Are they cute? They are frogmouth owls (蛙嘴夜鹰). Their mouths look like those of frogs. These two baby birds are just 5 weeks old. They lived in a zoo in the US ……