In a multiple - step procedure, the extracted mucopolysaccharide is esterified to mucopolysaccharide polysulfate.经过一系列多步骤的程序, 萃取的粘多糖被酯化成多磺酸粘多糖(MPS).There were much high esterified pectin the, which caused cloudy and sedi...
他犯下的滔天罪行给她的生活蒙上了永久的阴影。Her life has been per-manently blighted by his heinous crime.她可能会留下永久的创伤。She may have been scarred for life.永久的失明irrecoverable loss of sight...
Proverbs and idioms may become worn with overuse...谚语和习语会由于使用过多而变得俗套。Proverbs exhibit most of the stylistic devices of poetry.许多谚语具有诗的风格和手法.We should not use proverbs and allusions indiscriminately.不要滥用成语典故.Witticisms, m...