单词	step sector
释义	step sector 阶梯遮光板
随便看	it must be shown that It must be something extraordinary it must be stated that it must be strange that it must be stressed from it must be stressed that it must be supposed that it must be surprising that it must be taken that it must be that It must be that naughty boy crying outside it must be the case that It must be the gear shift lever It must be the wind that makes it so cold it must be thought that it must be time that It must be true it must be true that it must be uncertain that it must be understandable that It must be understood that it must be universally accepted that it must be universally that it must be unjustifiable that it must be unlikely that