【obstacle音标】 英[ˈɒbstəkl] 美[ˈɑːbstəkl]
【单词释义】 obstacle是什么意思:
n.障碍;阻碍;障碍物;绊脚石;障碍栅栏
[单词分级] 大学英语四级词汇
[单词复数] obstacles
【关联词/派生词】
obstruction n.障碍物;阻挠,妨碍;堵塞;阻塞;阻挡;路障
obstruct v.阻碍;阻塞;阻挡;妨碍
obstinate adj.顽固的;固执的;难于控制的;难以对付的;棘手的
【obstacle形近词/近似词】
article n.文章;物品
cubicle n.小卧室;小隔间
semicircle n.半圆;半圆弧线
cuticle n.(手指甲或脚趾甲根部的)外皮,角质层
particle n.微粒,颗粒;[数,物]粒子,质点;极小量
uncle n.叔叔;伯父
miracle n.奇迹,圣迹,神迹
vehicle n.交通工具;车辆
circle n.圆;圆状物 vt.圈出 vi.环绕,盘旋
encircle v. 包围;围绕;环绕
【单词例句】
◇ Weighing 30 kilograms and with a theoretical top speed of 12kph on their six wheels, the robots have four cameras constantly scanning the world around them and a laser tele-detection system allowing them to avoid obstacles.
这款机器人重达30公斤,有6个轮子,理论上的最高时速为12公里,有4个摄像头,不停地扫描四周,并安装了激光远距离探测系统,以避开障碍物。
---- 'Little yellow horse' robot delivers useful service in China
◇ Even once global standards are assured,however,a further obstacle lies in wait.The Internet is plagued by long,erratic response times because it is a pull-technology,driven by patterns of user demands.Push-technology,on the other hand,reverses the relationship: servers simply send information to passive users,as in television and radio.
即使一旦确定全球标准,还会出现更多的障碍。网络因其反映时间长却不稳定而痛苦,因为这是以消费者需求为中心的“拉动技术”。推动技术与此相反,服务器只是把信息传给被动使用者,像电视和录音机一样。