is that it is Bluetooth.The sound quality of the speaker is great. Words to songs are very clear. You can understand... importantly, a speaker (音箱). I know that some of you may like to wear headphones or earbuds (耳塞). But when ……

enough to eat or dangerously big. But on Venus, the speed of sound is much faster than it is on Earth... of Southampton, UK, have used physical and mathematical laws to see how sound travels on other planets and what ……

咔嚓，灯亮啦！咔嚓，灯亮啦！Is this an egg? This is a light. It is also a speaker. There are no buttons (按钮) on it. Pull it apart. Light and sound come out. You can take it for camping. It can work for eight hours ……

.The first require less space, but don't provide as good a sound: "It makes a big difference," says Andreas... all the information on the packaging mean? You want your CDs and records to sound great, but when ……

it, use only what you truly understand. Too many big words or concepts (概念) will make your speech sound... express it, use only what you truly understand. Too many big words or concepts (概念) will make your ……

understand. Too many big words or concepts (概念) can make your speech sound awkward (尴尬的). Listen... speech contestants. Do not overly prepare. Talk about only what you truly understand. Too many big ……

听两遍,选择正确答案。1. Who did the speaker go shopping with yesterday?A. Her father. B. Her mother.C. Her sister. 2. What did they buy?A. Pets. B. Some food. C. Clothes.3. What animals can the speaker usually ……

Task 1听句子，选择正确的图片。每个句子读一遍。Task 2 听短文，根据短文内容，选择正确答案。短文读两遍。1. Where does the speaker want to move?A. London.B. Beijing.C. Paris.2. What does the speaker want to work for?A. A newspaper.B. A radio ……

back in, and there it is again!Sound from an HSS speaker can travel nearly 140 metres without being..., the sound seems to come from the wall, not the speaker.This could be of great help to police. When ……

根据你所听到的短文内容，选择正确答案。短文听两遍。1. What’s the speaker talking about?A. A trip.B. A book. C. A writer.2.... The speaker believes that _____.A. it’s not easy now to live a bohemian lifeB. the free spirit ……

. It is completely unlike sound coming loudly from a distant speaker over other noise. When you step... a room with sound and weakening as they go. So the sound fades as you get farther from the speaker ……

它到底是飞盘还是音箱？Disc Jock-e is a frisbee (飞盘). It is also a waterproof (防水的) Bluetooth speaker (音箱... at the same time. The sound quality (音质) of the Disc Jock-e is also very good. You can play it almost ……

impressive. In truth, filling a speech with complicated words only makes a speaker sound pretentious...Big words muddy your messageEFFECTIVE speeches must contain clear language. This time, 21st Century ……

. The bubble is like a bullet. Pop (砰)! It breaks and makes a big sound. The sound can even... and makes a big sound. The sound can even break glass. ……

as that made by a motorcycle. That’s because the face of the dune acts like a speaker, making the sound much.... That’s because the face of the dune acts like a speaker, making the sound much louder. When ……