词汇	flexural fold
释义	flexural fold 弯曲褶皱
随便看	social cohesion and mobilization social cohesions social cohesiveness model social collaboration social collective imagination social collective labor social collective welfare social collectivity social column social columnist social comantic story social combustion theory social commentaries social commentary social commerce Social commitment social common interests social common understanding social commonwealth social commonweal work social communicating activity social communication social communication ability social communication atmosphere social communication mechanism