我左臂严重擦伤，并有轻微脑震荡。My left arm is badly bruised and I was slightly concussed.她从马上摔下来，造成了脑震荡。She fell off a horse and suffered a con-cussion.他呼吸特别困难，而且有严重的脑震荡。He was badly winded and concussed....
英国煤层的平均厚度为1米。The average UK coal seam is one metre thick.他正忙于勘探煤层.He is busy with proving up a coal deposit.煤层的炭化程度取决于温度.The degree of carbonization of coal depends on the temperature....
那匪徒龇牙咧嘴地狞笑.The bandit bared his teeth in an insolent smile.她看见那个奇耻大辱就站在她的面前, 带着狞笑看她, 讥笑她.She could see only outrage and humiliation, leering at her, mocking her.吴荪 甫 狞笑了.The thought brought a sardonic smile to Wu Sun - f...