为什么热气球会飞？Hot air rises5. A heater (加热器) fills the balloon with hot air. So the balloon rises, too. ……

TRENTON, New Jersey: A hormone thought to boost appetite rises in the bloodstream after dieters lose lots of weight, possibly explaining why it's so hard to keep weight off long term. This offers ……

right hand above4 the deck. The card your friend picked rises up (升起来).What's the secret?You put... can’t see it. This is why the card rises with your hand. ……

. But, since 1924, 15 people have been killed. The festival was central to the plot of The Sun Also Rises ……

give this game a try. Based on a graphic novel, Midnight Rises provides an *interactive way ……

hide their heads under their wingsThe night air fondling (抚摸着) everythingThe moon rises... their heads under their wingsThe night air fondling (抚摸着) everythingThe moon rises and the night ……

uses infrared (红外线) to measure each goat’s body temperature and can warn staff if it rises... uses infrared (红外线) to measure each goat’s body temperature and can warn staff if it rises ……

drive the tractors. There are two tractors in each team. Engines buzz. Smoke rises. They try...! Farmers drive the tractors. There are two tractors in each team. Engines buzz. Smoke rises ……

Bread full of bubbles为什么生面团会"长大"呢？Q: What makesdough(生面团) rise?A: Bread dough rises becauseyeast(酵母) is added. Flour, water, salt, and fat are mixed together to make the dough (other things can ……

of high-rises, each trying to compete with its neighbour with outrageous names such as "Artistic Music ……

Bottle water crisis2 cIF temperatures rises just this amount, it can increase skin cancer rates by more than 20 percent. For example, a severe heatwave, where temperatures hit 27 C for at least nine ……

. It wakes (叫醒) you up every morning when the sun rises. What is it?Children: Mother!What’s wrong?Tom: What ……

. We wake up every day before the sun rises, rushing to the teaching building with dark circles ……

moves to me and I move to it as fast as I can. After a long time, the sun rises very high and hangs4 ……

of cold water).It rises into cold water just like a helium balloon (氦气球), which is less dense than air, rises through the air.It rises into cold water just like a helium balloon (氦气球), which is less dense ……