药物分为内服药与外用药两类.Medicines are broadly classed as internal or external ones.很多内服药就是催化反应的产物.Many medicines are products of catalysts.这是内服药. 一天四次,每次两片.This is for internal use. Two tablets, four times a day....
某些种类的动植物不能适应迅速变化的环境。Some animal and plant species cannot accommodate to the rapidly changing cond-itions.这个岛屿拥有丰富多样的景致及种类繁多的野生动植物。The island offers such a wide variety of scenery and wildlife.现在可以买到许许多多不同种类的蘑菇。There are ...
The kinetics and mechanism of exciplex formation of 9,10 - dicyanoanthracene ( DCA ) by acenaphthenone ( ANO ) have been studied.研究了苊酮 ( ANO ) 对9,10-二氰蒽 ( DCA ) 的荧光猝灭与激基络合物形成的动力学与机理....
The lentil is just such a crop for many South Asians.小扁豆在南亚是原料农作物....blacks, Asians and people of Mediterranean stock.黑人、亚洲人和地中海沿岸高加索人的后裔Ethnic Composition: Hutu ( Buntu ) - 85 %; Tutsi ( Hamitic ) - 14 % ; Twa ( Pygmy )...
The letter still gives him a twinge when he thinks of it.他一想起那封信就会感到一阵刺痛。a twinge of guilt内疚He felt a twinge in his knee.他感到膝盖一阵剧痛。For a moment, Arnold felt a twinge of sympathy for Mr Wilson.有一瞬间，阿诺德对威尔逊先生心生同情。…the occa...