tiered

英语网为您整理了tiered的解释、用法、例句、词组、近反义词等相关学习资料。查看tiered是什么意思,tiered的用法,tiered的音标,tiered的近义词,tiered的反义词,tiered的相关词组请登录https://dict.25820.com/

英语网为您整理了three-tiered的解释、用法、例句、词组、近反义词等相关学习资料。查看three-tiered是什么意思,three-tiered的用法,three-tiered的音标,three-tiered的近义词,three-tiered的反义词,three-tiered的相关词组请登录https://dict.25820.com/

北京雾霾加剧 警报升级至橙色Thick smog shrouding Beijing and itssurrounding areas becomes heavier asthe capital has raised its four-tieredalert system to orange.The smog covered about 1.4 millionsquare km of Central and E