When entering a trail or starting a descent, yield to other skiers.进入滑雪道或开始下滑时，要给其他滑雪者让路。The plane began its descent to Heathrow.飞机开始向希思罗机场降落。The marriage was considered especially ignominious since she was of royal desc...
There were unseen dangers from every side of the travelers.旅客的四周到处潜伏着危险.After a short rest the travelers pushed on towards the coast.旅行者稍稍休息后,继续朝着海岸行进.The travelers wandered in the way.旅行者们在途中迷了路....
They know nothing about exothermic chemical reactions.他们对放热的化学反应一无所知.In general, exothermic combustion reactions require two reactants.一般说来, 放热燃烧反应需要两种反应物.Exothermic reaction can be reduced by adding hexahydrophthalic an...