Cyclobutane exists predominantly in a " butterfly " conformation.环丁烷主要成 “ 蝶式 ” 构象存在.On the other hand , cyclobutane pyrimidine dimmer ( CPD ) just has an effect of cell cycle arrest.而CPD光 产物 ( cyclobutanepyrimidinedimmer...
Hollywood soon became rife with rumors.整个好莱坞顿时流言四起。Is there any truth to the rumors?那些谣言有什么事实依据吗？Rumors have it that the school was burned down.有谣言说学校给烧掉了....
Brambles snagged his suit...荆棘把他的西服钩住了。I became caught in the brambles.我被困在了黑莓灌木丛里。The brambles scratched my legs.荆棘刺伤了我的双腿.He had to deal with holly bushes, nettles, hawthorns, eglantines , thistles , and very irascible...