天气预报上说多云并伴有阵雨。The weather forecast is for showers and overcast skies.云仙山今天一直在向外喷涌火山灰、气体和火山岩。Mount Unzen has been spewing out volcanic ash, gas, and rock today.黎明时分天气阴沉，云幕低垂。The day dawned sunless and with a low cloud bas...
当伴星围绕着主星运转时, 它交替地朝着地球或背离地球运转.As a companion star orbits its primary , it alternately approaches and recedes from the Earth.为了先提出较简单的结果,我们采用交替地讨论一些问题的方式.We have chosen to alternate the topics in order to have the simpler ...
He carries his eighty years well.真看不出他是八十高龄的老人。Weighing in at eighty tons, the B-19 was easily the largest and most sophisticated warplane in the world.B-19重达80吨，无疑是世界上最大、最先进的军用飞机。Eighty horses trotted up.80匹马小跑起来。My mot...