purity
(also pureness) n [U]
state or quality of being pure 纯净; 纯洁; 纯粹; 纯正; 纯度
test the purity of the water 检测水的纯度
question the purity of their motives 对他们的动机是否纯洁存有疑问
purity of colour, form, sound, etc 颜色、 形式、 声音等的纯正.
I'm not sure. I ought to do some studying, as I've got masses of work to do, but I think I'll be too tired. Maybe I'll just watch the news on television and go to bed early.
He passed his exams, and even better, when he left university he had earned enough money to start his own business, offering guide services to tourists.
他考试过关了,更惬意的是,他大学毕业时,所赚的钱足够他开始经营自己的行业--为游客提供导游服务。
First it made a circle to the right, then to the left.