speak, yourvocal cords(声带) vibrate, which causes the air around them to vibrate. The faster the vocal cords move, the higher your voice sounds.Helium is lighter than air so when you breathe in helium ……

a computer printout (打印输出). It is made of nylon (尼龙) as strong as steel but weighs 65 percent less... it to a printer, which used layers of melted powdered (粉状的) nylon to create the bike.The wheels, bearings (轴承 ……

.______ (tie) and weaving cords and ropes. “6.______ just a few cords, you can create many different items... the fun of 5.______ (tie) and weaving cords and ropes. “6.______ just a few cords, you can create many ……

in. Then, we let the air out. The moving air shakes our vocal cords (声带) to make sounds. If you try... vocal cords (声带) to make sounds. If you try to breathe in while blowing bubbles, it won’t work. Talking ……

the doctor cut the babies' umbilical cords. ……

vocal cords (声带).a. true b. false3. Cats can’t taste ___.a. saltb. sweet c. spicy (辣的)d. sour (酸的)4 ……

) and opinions by hiding their physical self. A Zentai suit is often made of nylon (尼龙). ……

, tightly woven cotton clothing is best for comfort and sun protection. While dark clothing is generally more efficient at absorbing the harmful rays.Loose woven fabrics let too much light through, and wet ……

students safe at night?A. Elastic cords. B. Reflective stripes.A. Elastic cords.B. Reflective ……

cosmetic company in Beijing. "But it's crazy to have an operation on your vocal cords for a job." She..., pointed out that only people who have serious problems with their vocal cords would need an ……

individual *vibration of the vocal cords. In vocal fry, the vowels are *prolonged in a *guttural sound... is “a mode of vibration that happens when the vocal cords are relatively *lax”.“So maybe some people use ……

纹布),” the BBC noted. In fact, recent global research revealed that the amount of denim woven ……

People walk on the steets under People walk on the steets under a woven sky. VCGa woven..., pink, green and so much more in the small town of Etzatlan in Mexico. People there call it the woven ……

. “Bringing props in was fabulous of Tony,” Robb said. “The tangled (缠结的) bunch of electrical cords (电线... and called an “electrical octopus (章鱼)”by Falcone, the tangled extension cords had a number ……

makes some people bad singers?There is something wrong with their vocal cords (声带). They just can&rsquo... people can have amusia.There is something wrong with their vocal cords (声带). They just can’t sing ……