今天一早，一枚“德尔塔”Ⅱ型火箭在卡纳维拉尔角发射升空。A Delta II rocket was launched from Cape Canaveral early this morning.戴维发誓要离开这个项目，我不得不对他表示钦佩。I had to admire David's vow that he would leave the programme.西尔维娅手里拿着相机问道：“我们先去哪里？”Sylvia, ca...
Unfortunately, there is little prospect of seeing these big questions answered.不幸的是，几乎不可能看到这些重大问题得到回复。Catching colds is unfortunately an occupational hazard in this profession.不幸的是，容易感冒是这个行业的职业性风险。Unfortunately, Grandma ...