A Chinese company made a new sodiumsodiumL1在质量、状况或效果上更优越的事物a silvery soft waxy metallic element of the alkali metal group batterybattery/ˈbætəri/L1电池a thing that stores electricity to make things work, and it works like Tesla batteries. Sodium is cheap and easy to find, so the scientists were surprisedsurprisedL1：突然被抓住，措手不及，感到惊奇或震惊taken unawares or suddenly and feeling wonder or astonishment and happy. They testedtestedL1经过测试，被证明是可靠的。tested and proved to be reliable 120 batteries with X-rays and saw a smart designdesign/dɪˈzaɪn/L1设计a plan or drawing that shows how something will be made like Tesla's. This design helps the battery work better, so it can be used for cars and homes.
But the battery has a problemproblem/ˈprɒbləm/L1问题；难题something that is not easy to fix or makes trouble. It does not chargecharge/tʃɑːdʒ/L1充电to put electricity into a battery well when it is coldcoldL1为开展商业活动而设立的机构the absence of heat. Scientists will fix this and make it storestore/stɔːr/L1储存to keep something for later use more energy. Then it will be a good choicechoiceL1缺乏热量the act of choosing or selecting for many things.
