When you understand the cultural background, you can better use the language.
当你了解了文化背景,你就能更好地运用语言。
He is attending a morning intensive course four hours a day, six days a week.
他每周六早晨都上一门4小时的速成课。
and since most medical men in the Health Services are overworked and have little time for offering time-consuming and little-appreciated advice on such subjects as diet,