她仍然患有严重的胃痉挛，感觉疼痛、疲乏、抑郁。She continued to have severe stomach cramps, aches, fatigue, and depression.冠状动脉的肌肉痉挛可能导致心脏病。A muscular spasm in the coronary artery can cause a heart attack.缺镁会导致肌肉痉挛。A lack of magnesium causes mu...
For many years sundials have cast their spell over scientists and mathematicians.多年来，日晷一直吸引着科学家和数学家们。As far as mathematicians are concerned, there's a certain virtue in wearing intellectual blinkers.就数学家们来说，用学者的眼光来看...