various,variety,variable,variation
构词:vari( = vary 变化)+-ous(多 adj.)
变化多 adj. 各种各样的,千差万别的。
辨析:vary (various) —change (changeable) —alter (alternative)
搭配:various ways / options / types / models / sources / problems,in various shapes and sizes,for various reasons
variety n. 多样化,各式各样。
a wide / rare variety of dishes / patterns / reasons / ways,in variety,need / want variety,new variety,variety show / theatre
variable adj. 易变的,多变的。
variable temperatures / speed / content / factor
variation n. 变化。
regional / seasonal / slight / wide variation
同义:various = manifold, different, diverse, numerous, abundant
考点:变化关系
velocity
构词:velo(运转)+c(quick 快速)+-ity(度 n.)
旋转速度 n. 加速度,速率。
相关:valve,involve,evolve,revolution
搭配:gain / lose velocity,high / low / certain / escape velocity
同义:speed,pace
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