Her cheeks had an unhealthy pallor.她面色苍白,显得虚弱。He had a sickly green pallor.他脸色青白,带有病容.the deathly pallor of her face她如死人一般苍白的脸色The deathly pallor of her skin had been replaced by the faintest flush of color...她如死灰般苍白的皮肤开...
When the days shorten in winter some people suffer depression.冬季天短,有些人会变得抑郁消沉。Injury problems could shorten his career.受伤的问题有可能缩短他的职业生涯。Minor accidents can shorten the life of a car.小事故会缩短汽车寿命....
它为制取1.6-二羰基产物开辟了广阔天地.This opens up a wide field of 1.6 - dicarbonyl products.这些部位包括羧基 、 羰基 、 环氧基和氨基等.These sites include, carboxyl, epoxy, amino and the like.对羰基的加成作用是有机化学中最重要的反应之一.Addition to carbonyls is one of the mos...
The maple leaves had fallen and they lined the gutters of the asphalted streets.枫树已经落叶,铺满了柏油路两旁的阴沟.He installed rain gutters and downspouts.他安装了雨水檐沟和排水管。The gutters either side of the paved high road were gurgling and ev...