单词:
单词: 相关文章
This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. On its opening day, 90,000 tourists traipsed across the London Millennium Bridge. That pitter patter of pedestrian feet caused the structure to visibly r
Drawing Attention Hey. Hello, there. Look here. Hey, you. Hey, you there. I see. Listen. See here. Look. Watch. Look out. Excuse me. Excuse me. Sorry. Sorry to bother you. Sorry to trouble you. Er Hum Attention, please. Pay attention, please. Let me
Rare but Deadly By Susan Brink /2005, U.S. News World Report . All rights reserved with permission. Distributed by Tribune Media Services International. Simple, cheap blood tests could save thousands
589 、 受迫振动 forcedvibration 590 、 受迫振荡 forcedoscillation 591 、 和谐 harmony 592 、 周转齿轮;行星齿轮 epicyclicgear 593 、 固定夹;台夹 benchholdfast 594 、 固定
Robot Security Could Help Cut Crime 机器人保安有助于降低犯罪率 Shopping centers, stadiums and universities may soon have a new tool to help fight crime. A California company called Knightscope says its robots can predict and prevent crim
Kawhi Leonard has now scored 30+points in four consecutive games. The last Spurs player to accomplish this feat? Tim Duncan in 2003-04. 卡哇伊莱昂纳德已经连续四场得到30分+的数据。上一位能够达成这一华丽数据的球员是谁