Halley's Comet is going to come back in 2061.哈雷彗星将于2061年回归。The value of the Halley family's stake has fallen by half since 1999.从1999年以来,Halley家族的股份缩水了一半.Earth crosses the orbit of Halley's Comet annually ...
Light colours provide an effective backdrop for pictures or a mirror.浅色是挂放图画或镜子很有效果的衬托。The mountains provided a dramatic backdrop for our picnic.群山如画，给我们的野餐平添景色。The large bay has a superb backdrop of mountains.大海湾背靠着庄严的山...
她注意到了安脸上露出了苦恼的表情。She was conscious of a troubled expression on Ann's face.他老是被一种叫人苦恼的不安情绪折磨着.He was afflicted always with a gnawing restlessness.他的自私是苦恼的根源.His selfishness was the root of trouble....