该手术要在角膜上做几个切口。The operation involves making several cuts in the cornea.在疾病后期,不透明的角膜可能产生溃疡,甚至穿孔.In advanced stages the opaque corneas may ulcerate and even perforate.光通过角膜进入眼睛.Light enters the eye through the cornea....
这可能是人类最近地遇到外星球生物.It may have been the closest that humankind has ever come to encountering extraterrestrials.为了拼命找到出口, 它会不断地朝最近地窗户撞去.Desperately seeking an exit, it repeatedly smacks itself against the nearest window.最近地...
The historian Yakut described it picturesquely as a "mother of castles".历史学家雅库特把它形象地描述为“城堡之母”。An art historian and collector, he was also a practising architect.他身为艺术历史学家和收藏家，同时也是一名从业建筑师。Historian Michael Beschloss debun...
We shall study double integrals over more general sets in the plane.我们将研究定义在平面上更一般的集合中的二重积分.The last two integrals correspond to the natural boundary conditions.最后两个积分对应于自然边界条件.This cuts the labor of evaluating integrals...
Making pasta by hand with a rolling pin can be a real chore.用擀面杖擀意大利面会是个非常枯燥乏味的活儿。Cook the pasta in a large pan of boiling water.在一大锅沸水中煮意大利面。Waiters glide between tightly packed tables bearing trays of pasta.侍者们端着一盘盘意大利...