The white sails billow with the breezes they catch.一张张白帆随着微风舞动。They skip rope and play catch, waiting for the bell.他们又是跳绳，又是玩接球，等着上课铃声响起。Most late developers will catch up with their friends.大多数身材发育迟缓者都会赶上他们的朋友。...
A change in enthalpy also takes place when a change of phase occurs.相发生变化时,焓也发生变化.Curing shrinkage, temperature and curing enthalpy of benzoxazine based on diphenyl oxide resin were investigated.研究了苯并口恶嗪二苯醚树脂固化时的体积收缩率 、 ...
"That is beautiful, Tony," Momma said, no longer sounding at all snappish.“真美呀，托尼，”妈妈说道，话音里的恶声恶气不见了。No matter how snappish you are, don't forget the tune.即使再急，也不要忘了语气。...