天文学家能够测定每颗恒星的亮度。An astronomer can determine the brightness of each star.星星的光亮度各不相同.Stars vary in brightness.用18瓦的荧光灯灯泡有同样的亮度，而用电量却减少75％。With an 18-watt fluorescent bulb you get as much light but use 75% less electricity....
遇难船正发射信号弹以引起海岸警卫队的注意.The wrecked ship was firing flares to attract the attention of the coastguards.这里, 一艘拖船的遇难船休息在沙地加勒比海的墓地.Here, the wreck of a tugboat rests in its sandy Caribbean grave.海难、遇难船船舶意外毁坏; 船的失事.Accidental d...
He squatted, grunting at the pain in his knees...他蹲在那儿，双膝的伤痛得他直哼哼。He squatted on the floor and gave vent to a deep sigh.他蹲在地板上，深深叹了一口气。Edgar squatted on his haunches...埃德加蹲着。He squatted on the floor and gave vent to a de...
A sense of period was evoked by complementing pictures with appropriate furniture.给照片配上一些合适的家具，唤起了一种年代感。Her face, though sad, still evoked a feeling of serenity.她的脸色虽然悲伤, 但仍使人感觉安详.Her speech evoked great anger.她的讲话引起了极大的...
Results 17 cases have been treated effectively, 1 case balloon ruptured, 1 case parafunction of blood coagulability.结果在应用双气囊三腔管治疗的19例患者中,有效止血17例, 气囊破裂1例, 凝血功能障碍1例.PROGRESSIVE BALLOON DILATATION UNDER ENDOSCOPE FOR ACHALA...