At very high temperatures, more endothermic reactions play a role.在很高的温度下, 更多的吸热反应起作用.This process is endothermic with rapid carbon deposition and deactivation of the catalyst.此过程是吸热的,同时很快发生碳积沉并使催化剂活性减低.Is Hell exothermi...
晚上的演出很糟，所有人都缩手缩脚，显得很不自信。The evening show was terrible, with hesitant unsure performances from all.这场演出的门票也是几乎在开演前就销售一空了。This show, too, was virtually sold out before it opened.你觉得谁会代替她参加这场演出？Who do you suppose will repla...