a safe (保险箱) that could hold all those things. And it can only be opened by the sound of your voice... as a drawer to keep your valuables in. If someone tries to physically crack (砸开) the safe it will set off ……

hearing.Sometimes you need hearing protectors to keep your ears safe. In an eight-hour rock concert...多大的噪音会让你的耳朵受不了呢？SCIENTISTS usedecibels(分贝) to tell how loud a sound is.Everyday conversation ……

OK, say good-bye to the cables, plugs and chargers that mess up your room. Scientists have discovered a way of transmitting electric power across a room into a light bulb, mobile phone or laptop ……

) for your laptop. Ask someone to watch your belongings (物品) when you head to the restroom or take a break.... But, unfortunately, bad things do happen. Here are some suggestions of ways for students to stay safe ……

ears, the headphones are held against your cheek, transmitting sound through your cheekbones..., Aftershokz allows you to hear music and other sounds around you to keep you safe from traffic. ……

. To change the look of your laptop, use posters with different designs.Power-savingA laptop with an LED... crystal display) screen. It is better for your eyes as well.英语词汇解析cleanse 纯净，净化dreary 沉闷的ion 离子laptop ……

New masks can do more than just keep us safe. DONUT ROBOTICSNew masks can do more than just keep us.... When you speak with the mask on, your voice will not sound muffled (沉闷的). There is also a hard case ……

.* To keep a laptop's battery in good condition, it's best to use the battery and main power...'s battery to prevent it from being constantly charged and becoming overheated.* Don't put your laptop ……

scientists. To train the AI, the scientists first recorded the sounds of pressing every key on a laptop... can match a key to its correct sound 93 to 95 percent of the time. The stealing of passwords can ……

重点讲解高考词汇sound adj. 完好的，健全的They have got home safe and sound.relieve v. 减轻（痛苦，焦虑或困扰）近义词：easeThis medicine will relieve your headache.cherish v. 珍爱，爱惜We should learn to cherish what we already have ……

YOU can wear a pair of gloves to keep your hands from freezing. But what about your icy feet? Don... talented mouseWANT to save some room in your laptop bag? Get the four-in-one Microsoft Notebook ……

it through the rainAnd if you keep falling down don't you dare give inYou will arise safe and sound, so... distraught and in pain without anyoneWhen you keep crying out to be savedBut nobody comes and you feel so ……

has a slim slip plate that you can keep fixed to the bottom of your camera or video. You just click... batteries can be used like a normal battery and are recharged via your computer's USB port. Simply flip ……

laptop (笔记本电脑), the Y9000K 2023. It stays cool by using a special kind of water. A small pump (泵) pushes the water through pipes (管道) inside the laptop. Traditional gaming laptops use heat sinks (散热 ……

a laptop (笔记本) to cry out for help if someone has stolen it.The program is called Retriever...) allowed owners to show messages on the machine. When a thief tried to use the laptop, a red or yellow ……